Fix starting gear multiple storage fills and tests (#32718)

* fix things

* maybe fix everything

Content.Shared/Station/SharedStationSpawningSystem.cs

@@ -150,6 +150,7 @@ public abstract class SharedStationSpawningSystem : EntitySystem
 
             foreach (var (slot, entProtos) in startingGear.Storage)
             {
+                ents.Clear();
                 if (entProtos.Count == 0)
                     continue;