Domain access: TypeError in hook_node_grants can completely crash site

one of my colleague also faced this issue
there was no any issue in modules or core file
Actually he was copying whole DB and source code to different machine and trying to run drupal
later we find the users table does not contain 0 uid
and it was actually at 14 uid, then we updated 14 -> 0 uid and it seems all work fine

Just to confirm, I have a user with uid 0 and I'm still facing the error.
After applying the patch from #5, it works fine. I suggest considering the issue and reviewing the suggested patch again.

Patch #5 is working and fixed issue for me.

Other code breaking the API is not our responsibility. That issue should be filed upstream with the caller.