AttributeError: 'GSAnchor' object has no attribute 'drawPoints'

A script that was definitely working last week stopped working (confirmed still works in 1146):

It’s a script that check 2 open glyphs files and reports which glyphs have changed by creating a new text tabs for each master, it also copies the other fonts glyph into the background.

Traceback (most recent call last):
  File "Compare Fonts.py", line 79, in <module>
    g1.drawPoints(p1)
  File "/Library/Python/2.7/site-packages/robofab/objects/objectsBase.py", line 1502, in drawPoints
    a.drawPoints(pen)
AttributeError: 'GSAnchor' object has no attribute 'drawPoints'

That is fixed in 1147.