Portals - force full check on adding moving object

Moving objects being added during instance_moving_create() were incorrectly not forcing a full check to find which room they were within. This could result in moving objects being re-added not correctly identifying their current room, and thus culling incorrectly. This PR forces a full check on calling instance_moving_create.

servers/visual/portals/portal_renderer.cpp

@@ -59,7 +59,7 @@ OcclusionHandle PortalRenderer::instance_moving_create(VSInstance *p_instance, R
 	}
 
 	OcclusionHandle handle = pool_id + 1;
-	instance_moving_update(handle, p_aabb);
+	instance_moving_update(handle, p_aabb, true);
 	return handle;
 }