0f65acef25
The behavior of the field inferencing changed slightly. So instead of checking
if the link connects a socket that has a field to one that does not, check the
source is a field and the target does not support one. Note the difference
between "having a field" and "supporting a field".
This was probably broken in 7b7c630018.
Pull Request: https://projects.blender.org/blender/blender/pulls/143975