fix(Core/Spells): Next melee swing spells are supposed to be queued up even when out of range. (#7180)

- Closes #6588

src/server/game/Spells/Spell.cpp

@@ -3244,11 +3244,15 @@ SpellCastResult Spell::prepare(SpellCastTargets const* targets, AuraEffect const
             triggeredByAura->GetBase()->SetDuration(0);
         }
 
+        // Allows to cast melee attack spell if result is SPELL_FAILED_OUT_OF_RANGE
+        if (!IsNextMeleeSwingSpell() || result != SPELL_FAILED_OUT_OF_RANGE)
+        {
             SendCastResult(result);
 
             finish(false);
             return result;
         }
+    }
 
     // Prepare data for triggers
     prepareDataForTriggerSystem(triggeredByAura);