Replaced with part 4620JJ2009A, Stopper, Door. Unscrewed broken piece (it is a plastic hinge). Opened bottom ice drawer to expose proper alignment with closed refrigerator door. Screwed new piece in, it is identical and fits perfectly. Took 5 minutes or less.
The engineering of the door holder is not great to begin with, but this is the correct part for this french door, bottom ice drawer refrigerator.