Invalidate hover state when a multibuffers paths change (#60443)

Fixes a panic when multibuffer paths change under a cursor hover
Fixes ZED-9W1
Closes FR-112

Release Notes:

- N/A or Added/Fixed/Improved ...
0bc9c99f00Lukas Wirth committed on 7/9/2026, 9:20:36 AM· committed by GitHubparent4d6762a
1 file changedLine totals unavailable