[backport core/1.35] Prevent sidebar tool buttons from flashing during collapse#7654
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christian-byrne merged 1 commit intocore/1.35from Dec 20, 2025
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Prevent sidebar tool buttons from flashing during collapse. ## What changed - Clip the sidebar tool-buttons container during hover collapse so tab labels don't render outside the header. - Keep the existing width/opacity transition so the title still reclaims space. ## Why - Motivation: the hover-out transition shrinks the tool-buttons wrapper to `w-0` while the tabs keep their intrinsic width, causing a brief clipped flash on the right edge of the sidebar. - Why this approach: clipping during the transition is the smallest change that fixes the visual artifact without altering layout timing or hover behavior. - Tradeoffs / limitations: no functional change; the buttons are only clipped while collapsing. ## Evidence - Issues: n/a - Tests: Not run (lint/typecheck only; not evidence) - Screenshots/video: https://github.com/user-attachments/assets/3af4d735-6330-4521-b4cf-45eb4b09f9ba ## References - Related PRs: n/a
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christian-byrne
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Dec 20, 2025
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Backport of #7652 to
core/1.35Automatically created by backport workflow.
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