chore: add changeset for #12210 fix

SAY-5 · SAY-5 · commit c28ec2b5260a · 2026-04-28T04:56:18.000-07:00
diff --git a/.changeset/fix-apply-diff-malformed-separator.md b/.changeset/fix-apply-diff-malformed-separator.md
@@ -0,0 +1,5 @@
+---
+"roo-cline": patch
+---
+
+apply_diff: detect a malformed `-------` separator in the SEARCH section (e.g. `-------import { ... }` with no trailing newline) and surface a clear "Malformed separator" error instead of the generic "63% similar" mismatch. Smaller models that occasionally emit this shape can now self-correct on the next attempt instead of looping. Closes #12210.

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +"roo-cline": patch
 +---
++
 +apply_diff: detect a malformed `-------` separator in the SEARCH section (e.g. `-------import { ... }` with no trailing newline) and surface a clear "Malformed separator" error instead of the generic "63% similar" mismatch. Smaller models that occasionally emit this shape can now self-correct on the next attempt instead of looping. Closes #12210.