Bee's wandering AI tries to go through three-way corners

The Bug

when bee is enclosed in a cage it will try to path find through corners to get to flowers. Once corner is filled in it will stop attempting to go through that corner.

It looks like this only applies to three-way corners.
in this scenario, filling in any of the 4 missing blocks will make the bee unable to pathfind through the corner:

How to Reproduce

1. Build a completely encased area with no corners filled:
   
2. Summon a bee in it
   -> After a short while, the bee will try to go through a corner