Bring the current search match back into range when the matches change

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

pkg/gocui/search_test.go

@@ -31,9 +31,6 @@ func TestSearchStatusAfterTheMatchesChange(t *testing.T) {
 	writeLines(v, "match", "other", "other")
 
 	index, total = v.GetSearchStatus()
-	/* EXPECTED:
 	assert.Equal(t, 0, index)
-	ACTUAL: */
-	assert.Equal(t, 2, index)
 	assert.Equal(t, 1, total)
 }

pkg/gocui/view.go

@@ -1431,6 +1431,11 @@ func (v *View) updateSearchPositions() {
 			}
 		}
 	}
+
+	// The content may hold fewer matches than it did, so the current one is brought
+	// back into range: readers index the positions by it.
+	v.searcher.currentSearchIndex = min(v.searcher.currentSearchIndex,
+		max(0, len(v.searcher.searchPositions)-1))
 }
 
 // IsTainted tells us if the view is tainted