Fix block-comment prefix stripping when joining lines (#63916)

Closes
https://github.com/zed-industries/zed/issues/63273#issuecomment-5580302020



https://github.com/user-attachments/assets/0945d43d-9a19-4af6-bc85-c3369d8babb3


Release Notes:

- Fixed block-comment prefix stripping when joining lines
20d3cd1d79Kirill Bulatov committed on 9/8/2026, 3:16:55 PM· committed by GitHubparente2534d2
3 files changedLine totals unavailable