Player entity targeted spells don't release pointer for next cast

[Rederick5]

When using rejuvination or ice shield to target a player, attempting to rapidly switch between targets will often cast the spell on the last player hit, regardless of aim.

Reproduction method: Cast ice shield on a player, turn away from player and cast spell again (may require missing any target on next cast). Spell will recast on last hit player instead of defaulting to self. Does not seem to happen for more than 1 cast.

[SaintWish]

I think this was fixed in the unstable branch but not confirmed.