diff -r 19f19c66b67e -r 63f4af6bf6d9 graphics/GraphicCommons.py
--- a/graphics/GraphicCommons.py	Wed Aug 16 13:49:02 2017 +0300
+++ b/graphics/GraphicCommons.py	Wed Aug 16 13:56:36 2017 +0300
@@ -1384,7 +1384,7 @@
             connector_max_used = False
 
         # connector is available for new connection
-        connect  = connector_free or not connector_max_used
+        connect = connector_free or not connector_max_used
         return connect, connector_max_used
 
     # Tests if the point given is near from the end point of this connector