Fix selector tests failing on empty entities
Fix selector tests failing on empty entities

This fixes Spellbender failing on untargeted spells.

liujimj/fireplace,smallnamespace/fireplace,liujimj/fireplace,amw2104/fireplace,beheh/fireplace,amw2104/fireplace,Ragowit/fireplace,NightKev/fireplace,Meerkov/fireplace,smallnamespace/fireplace,Ragowit/fireplace,jleclanche/fireplace,Meerkov/fireplace