Avoid laying out beyond end of document. Bug #3476637.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/Editor.cxx b/src/Editor.cxx
index 4fce8bb2d..1e7df0320 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -6701,7 +6701,7 @@ void Editor::SetBraceHighlight(Position pos0, Position pos1, int matchStyle) {
 void Editor::SetAnnotationHeights(int start, int end) {
 	if (vs.annotationVisible) {
 		bool changedHeight = false;
-		for (int line=start; line<end; line++) {
+		for (int line=start; line<end && line<pdoc->LinesTotal(); line++) {
 			int linesWrapped = 1;
 			if (wrapState != eWrapNone) {
 				AutoSurface surface(this);