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fix(motion): Cmd-B and Cmd-D move every pane on one timeline - #36677

Merged

cmux-bot[bot] merged 17 commits into

feat-cmux-nextfrom

lane/one-motion-system

Nov 5, 2026

Merged

fix(motion): Cmd-B and Cmd-D move every pane on one timeline#36677
cmux-bot[bot] merged 17 commits into
feat-cmux-nextfrom
lane/one-motion-system

Commits on Nov 5, 2026
- bench(one-motion): per-pane frame timing of Cmd-B, Cmd-D and both together beside an agent chat
  
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  5d4a80c
- test(layout): a sidebar slide frame reaches a splitting pane in the same frame (red)
  
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  a9ad577
- fix(layout): a viewport resize carries running pane springs with it (one motion)
  
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  b715fce
- test(layout): a chat beside a split takes its rest size on the spring's first frame (red)
  
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  cd5b2ae
- fix(layout): a chat beside a split lays out at its final size on the first frame, not at the landing
  
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  392b4cc
- test(sidebar): the slide steps on the window's motion clock (red)
  
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  66ccfd2
- fix(sidebar): the slide steps on the window's motion clock with the panes (one motion)
  
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  6cfc894
- bench(one-motion): frame drops and main-thread work per motion beside a 5000-row chat
  
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  317c3bf
- fix(layout): a viewport resize under a spring is not a carried change
  
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  236af20
- test(layout): held content lays out once per spring, at its start
  
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  c214134
- fix(motion): a timed transition completes once its end is on screen
  
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  e30ae3c
- fix(sidebar): a slide turns around from the width on screen
  
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  98b3a96
- fix(sidebar): a slide that turns around puts its constraints back on screen at once
  
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  85402ae
- fix(layout): a retarget to a smaller rest keeps the larger chat page, as #26118 did
  
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  92c7522
- test(sidebar): a side switch mid-slide leaves the old clip edge at zero (red)
  
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  3005300
- fix(sidebar): a slide under way writes the clip edge on screen after a side or reach change
  
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  4808b49
- chore: resync the pull request with its branch
  
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  1e45fde

Commits

Commits on Nov 5, 2026