fixes morgue (almost) (#4375)

* fixes morgue (almost)

* yes

Co-authored-by: Paul <ritter.paul1+git@googlemail.com>

Content.Server/Storage/Components/EntityStorageComponent.cs

@@ -443,7 +443,7 @@ namespace Content.Server.Storage.Components
             EmptyContents();
         }
 
-        protected IEnumerable<IEntity> DetermineCollidingEntities()
+        protected virtual IEnumerable<IEntity> DetermineCollidingEntities()
         {
             var entityLookup = IoCManager.Resolve<IEntityLookup>();
             return entityLookup.GetEntitiesIntersecting(Owner);