bbb7962b3c
Since ebb61ef30f reroute nodes couldn't be inserted on links anymore,
when their socket's type is currently incompatible.
Because the sockets of reroute nodes change types dynamically
according to the sockets they are linked to, it should always be
allowed to insert reroutes onto links.
Pull Request: https://projects.blender.org/blender/blender/pulls/122637