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-rw-r--r--src/Editor.cxx2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Editor.cxx b/src/Editor.cxx
index 2b0221dd8..f7ecd743f 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -3243,6 +3243,8 @@ void Editor::DrawBlockCaret(Surface *surface, ViewStyle &vsDraw, LineLayout *ll,
// See if the next character shares horizontal space, if so we'll
// need to draw that too.
+ if (offsetFirstChar < 0)
+ offsetFirstChar = 0;
numCharsToDraw = offsetLastChar - offsetFirstChar;
while ((offsetLastChar < ll->LineStart(subLine + 1)) && (offsetLastChar <= ll->numCharsInLine)) {
// Update posAfter to point to the 2nd next char, this is where