Don't push to undo history when no change

This can happen for example if we just moved the selection box.
guillaumechereau · Jul 7, 2024 · e4a2b7f · e4a2b7f
1 parent ef2499e
commit e4a2b7f
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/image.c b/src/image.c
@@ -616,6 +616,13 @@ void image_history_push(image_t *img)
 {
     image_t *snap;
 
+    // Don't do anything if the image didn't actually changed.
+    if (img->history_pos) {
+        if (image_get_key(img) == image_get_key(img->history_pos)) {
+            return;
+        }
+    }
+
     // Discard previous undo.
     if (img->history_pos) {
         while (img->history_pos->history_next) {