Allow symbols to be undocked from the right of differentials
Allow symbols to be undocked from the right of differentials

# The right hand docking point is only a child in our model, it shouldn't
# count when blocking removal of children! Otherwise you can add things to
# a differential and then be unable to remove them!

ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app