ep: Apply diff to editable region only and edit history fixes (#44737)

Release Notes:

- N/A

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Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>
Co-authored-by: Agus Zubiaga <agus@zed.dev>
e1d236eaf0Oleksiy Syvokon committed on 12/12/2025, 9:18:13 PM· committed by GitHubparent60f4aa3
3 files changedLine totals unavailable