### What
- Resolves: #4456

The crux of the problem is cloning the SpaceView created a new SpaceView
with the same DataQuery reference (which is where the property overrides
are stored).

Since cloning the internal IDs of a SpaceView or DataQuery can have
unintended consequences, I removed Clone from these types and replaced
it with a `duplicate` method with clearer semantics.

Also had to clean up the heuristic path to get rid of the one otherwise
unnecessary clone.

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested the web demo (if applicable):
* Using newly built examples:
[app.rerun.io](https://app.rerun.io/pr/4549/index.html)
* Using examples from latest `main` build:
[app.rerun.io](https://app.rerun.io/pr/4549/index.html?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[app.rerun.io](https://app.rerun.io/pr/4549/index.html?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG

- [PR Build Summary](https://build.rerun.io/pr/4549)
- [Docs
preview](https://rerun.io/preview/f128e543a4e06edee55f1a089b1b6a9837ca43b0/docs)
<!--DOCS-PREVIEW-->
- [Examples
preview](https://rerun.io/preview/f128e543a4e06edee55f1a089b1b6a9837ca43b0/examples)
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- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
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