Fixed Tree Selection Bug

scene/gui/tree.cpp

@@ -247,29 +247,30 @@ void TreeItem::_propagate_check_through_parents(int p_column, bool p_emit_signal
 		return;
 	}
 
-	bool all_unchecked_and_not_indeterminate = true;
-	bool any_unchecked_or_indeterminate = false;
+	bool any_checked = false;
+	bool any_unchecked = false;
+	bool any_indeterminate = false;
 
 	TreeItem *child_item = current->get_first_child();
 	while (child_item) {
 		if (!child_item->is_checked(p_column)) {
-			any_unchecked_or_indeterminate = true;
+			any_unchecked = true;
 			if (child_item->is_indeterminate(p_column)) {
-				all_unchecked_and_not_indeterminate = false;
+				any_indeterminate = true;
 				break;
 			}
 		} else {
-			all_unchecked_and_not_indeterminate = false;
+			any_checked = true;
 		}
 		child_item = child_item->get_next();
 	}
 
-	if (all_unchecked_and_not_indeterminate) {
-		current->set_checked(p_column, false);
-	} else if (any_unchecked_or_indeterminate) {
+	if (any_indeterminate || (any_checked && any_unchecked)) {
 		current->set_indeterminate(p_column, true);
+	} else if (current->is_indeterminate(p_column) && !any_checked) {
+		current->set_indeterminate(p_column, false);
 	} else {
-		current->set_checked(p_column, true);
+		current->set_checked(p_column, any_checked);
 	}
 
 	if (p_emit_signal) {