sorry, the person who sent the bug report clarified "saw your bug report. for the record, ai played 0 against me, it softlocked the game, but was playable again after a refresh. something in M1 (specifically, me playing the 27 with a full hand) permanently bricked the game for me, even after a refresh" (so yeah I knew the 0 softlock is intentional but wasn't sure if that's what the player meant)
the person also says it's bricked webgl totally so it may be a coincidence :/ sorry