Core/Spell: Prevent NO_TARGET auras from actually selecting target

src/server/game/Spells/SpellInfo.cpp

@@ -645,7 +645,9 @@ uint32 SpellEffectInfo::GetProvidedTargetMask() const
 uint32 SpellEffectInfo::GetMissingTargetMask(bool srcSet /*= false*/, bool dstSet /*= false*/, uint32 mask /*=0*/) const
 {
     uint32 effImplicitTargetMask = GetTargetFlagMask(GetUsedTargetObjectType());
-    uint32 providedTargetMask = GetTargetFlagMask(TargetA.GetObjectType()) | GetTargetFlagMask(TargetB.GetObjectType()) | mask;
+    uint32 providedTargetMask = GetProvidedTargetMask() | mask;
+    if (!providedTargetMask) // no targets to select
+        return 0;
 
     // remove all flags covered by effect target mask
     if (providedTargetMask & TARGET_FLAG_UNIT_MASK)