Rapid flashing when scrolling an MR while the right sidebar is expanded if the viewport is smaller than lg
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Reported by @clavimoniere on Sept 30th, 2025 here: https://gitlab.com/gitlab-org/gitlab/-/issues/567702#note_2789690679
Something pretty weird goes on when you try to scroll an MR while the right sidebar is expanded if the viewport is smaller than `lg`.
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**Screen Capture** (trigger warning: rapid flashing)
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issue