Discard additional redo on commiting actions

1 files changed, 16 insertions, 0 deletions

diff --git a/editor/editor_undo_redo_manager.cpp b/editor/editor_undo_redo_manager.cpp
index 2e96ae82fc..57e55e7bac 100644
--- a/editor/editor_undo_redo_manager.cpp
+++ b/editor/editor_undo_redo_manager.cpp
@@ -264,6 +264,22 @@ void EditorUndoRedoManager::commit_action(bool p_execute) {
 		history.undo_stack.push_back(pending_action);
 	}
 
+	if (history.id != GLOBAL_HISTORY) {
+		// Clear global redo, to avoid unexpected actions when redoing.
+		History &global = get_or_create_history(GLOBAL_HISTORY);
+		global.redo_stack.clear();
+		global.undo_redo->discard_redo();
+	} else {
+		// On global actions, clear redo of all scenes instead.
+		for (KeyValue<int, History> &E : history_map) {
+			if (E.key == GLOBAL_HISTORY) {
+				continue;
+			}
+			E.value.redo_stack.clear();
+			E.value.undo_redo->discard_redo();
+		}
+	}
+
 	pending_action = Action();
 	is_committing = false;
 	emit_signal(SNAME("history_changed"));