Draft: Fixed possible bug when removing trackers

2018-04-03 13:30:11 -03:00
parent 2a7cd1bb28
commit 85b42a16d9
1 changed files with 2 additions and 1 deletions
--- a/src/Mod/Draft/DraftTrackers.py
+++ b/src/Mod/Draft/DraftTrackers.py
@@ -83,7 +83,8 @@ class Tracker:
        '''remove self.switch from the scene graph.  As with _insertSwitch,
        must not be called during scene graph traversal).'''
        sg=Draft.get3DView().getSceneGraph()
-        sg.removeChild(switch)
+        if sg.findChild(switch) >= 0:
+            sg.removeChild(switch)

    def on(self):
        self.switch.whichChild = 0