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Don't include common ancestor when picking "both" for a conflict in diff3 style - #5747

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pick-both-with-diff3-conflict-style
Jul 1, 2026
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Don't include common ancestor when picking "both" for a conflict in diff3 style#5747
stefanhaller merged 2 commits into
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pick-both-with-diff3-conflict-style

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When a merge conflict is rendered in the diff3 style, git includes the common-ancestor section between the two sides. Pressing b used to pick all three, which doesn't make sense; it now picks only the current and incoming hunks.

Fixes #5486.

stefanhaller and others added 2 commits July 1, 2026 09:24
Pressing `b` on a conflict is meant to pick both sides. With the diff3
conflict style, git also renders the common ancestor between the two
sides, and `b` currently keeps that ancestor section too, which is
wrong: the common base is neither side of the merge and must not end up
in the resolved file.

This test captures the current (buggy) behaviour so the follow-up fix
has a clear before/after.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
`b` on a merge conflict is meant to keep both sides. With the diff3
conflict style git additionally renders the common ancestor between the
two sides, and the old ALL selection kept everything between the
outermost markers, dragging that ancestor into the resolved file.

Rename the selection from ALL to BOTH and restrict it to the top and
bottom hunks so the common base is dropped. Without the diff3 style
there is no ancestor section, so the behaviour there is unchanged.

The user-facing keybinding config was already named pickBothHunks; only
the internal enum, handler, translation and log string still said "all".

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@stefanhaller stefanhaller added the bug Something isn't working label Jul 1, 2026
@stefanhaller
stefanhaller merged commit 722239a into master Jul 1, 2026
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@stefanhaller
stefanhaller deleted the pick-both-with-diff3-conflict-style branch July 1, 2026 08:06
tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Jul 9, 2026
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [jesseduffield/lazygit](https://github.com/jesseduffield/lazygit) | minor | `v0.62.2` → `v0.63.0` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>jesseduffield/lazygit (jesseduffield/lazygit)</summary>

### [`v0.63.0`](https://github.com/jesseduffield/lazygit/releases/tag/v0.63.0)

[Compare Source](jesseduffield/lazygit@v0.62.2...v0.63.0)

<!-- Release notes generated using configuration in .github/release.yml at v0.63.0 -->

#### What's Changed

##### Enhancements 🔥

- Add direnv support by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5660](jesseduffield/lazygit#5660)
- Improve cycling through multiple pagers by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5678](jesseduffield/lazygit#5678)
- Detect external repo changes via background polling by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5662](jesseduffield/lazygit#5662)
- Make the side panels configurable by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5702](jesseduffield/lazygit#5702)
- Add a global keybinding for editing the config file by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5728](jesseduffield/lazygit#5728)
- Improve resolving non-textual and submodule merge conflicts by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5735](jesseduffield/lazygit#5735)
- Auto-dismiss the continue-rebase prompt when it becomes stale by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5758](jesseduffield/lazygit#5758)
- Support custom pagers and passphrase prompts on Windows by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5740](jesseduffield/lazygit#5740)
- Make creating worktrees simpler and less error-prone by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5741](jesseduffield/lazygit#5741)
- Improve deleting worktrees and their branches by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5748](jesseduffield/lazygit#5748)
- Allow overriding the platform used for default keybindings by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5671](jesseduffield/lazygit#5671)
- Add `gui.shrinkSidePanelsToContent` option by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5754](jesseduffield/lazygit#5754)
- Show renamed files in the custom patch builder by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5759](jesseduffield/lazygit#5759)

##### Fixes 🔧

- Fix unstaging a submodule with dirty content by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5666](jesseduffield/lazygit#5666)
- Fix coloring of wrapped delta lines by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5711](jesseduffield/lazygit#5711)
- Fix Files Panel artefacts during rebase commands by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5661](jesseduffield/lazygit#5661)
- Keep selected commits stable across refreshes by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5717](jesseduffield/lazygit#5717)
- Fix quoting of shell commands on Windows by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5704](jesseduffield/lazygit#5704)
- Silently consume unrecognized or malformed escape sequences by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5738](jesseduffield/lazygit#5738)
- Don't include common ancestor when picking "both" for a conflict in diff3 style by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5747](jesseduffield/lazygit#5747)

##### Maintenance ⚙️

- Some fixes to our infrastructure by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5705](jesseduffield/lazygit#5705)
- Restructure the `just` recipes for running integration tests by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5720](jesseduffield/lazygit#5720)
- Fix flaky TestNewCmdTaskInstantStop test by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5743](jesseduffield/lazygit#5743)
- Bump golang.org/x/sync from 0.20.0 to 0.21.0 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5684](jesseduffield/lazygit#5684)
- Bump golang.org/x/sys from 0.45.0 to 0.46.0 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5685](jesseduffield/lazygit#5685)
- Bump github.com/sahilm/fuzzy from 0.1.2 to 0.1.3 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5706](jesseduffield/lazygit#5706)
- Bump actions/cache from 5 to 6 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5722](jesseduffield/lazygit#5722)
- Bump actions/checkout from 6 to 7 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5723](jesseduffield/lazygit#5723)
- Bump goreleaser/goreleaser-action from 7.2.2 to 7.2.3 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5745](jesseduffield/lazygit#5745)
- Bump golangci/golangci-lint-action from 9.2.0 to 9.3.0 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5746](jesseduffield/lazygit#5746)
- Bump golang.org/x/net from 0.47.0 to 0.55.0 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;5752](jesseduffield/lazygit#5752)
- Pin gofumpt version to 0.9.2 by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5753](jesseduffield/lazygit#5753)
- Fix a few flaky tests by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5756](jesseduffield/lazygit#5756)

##### I18n 🌎

- Update translations from Crowdin by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5760](jesseduffield/lazygit#5760)

##### Performance Improvements 📊

- Prevent staging from becoming slower over time by [@&#8203;stefanhaller](https://github.com/stefanhaller) in [#&#8203;5712](jesseduffield/lazygit#5712)

**Full Changelog**: <jesseduffield/lazygit@v0.62.2...v0.63.0>

</details>

---

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This MR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate).
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merge.conflictStyle diff3 makes [b] "pick both" also add the deleted merge-base lines

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