Embedded field does not generates join ref counts.

Author: WaVEV

django_mongodb/compiler.py

@@ -17,8 +17,6 @@
 from django.utils.functional import cached_property
 from pymongo import ASCENDING, DESCENDING
 
-from django_mongodb.fields import EmbeddedModelField
-
 from .base import Cursor
 from .query import MongoQuery, wrap_database_errors
 
@@ -549,11 +547,7 @@ def get_combinator_queries(self):
     def get_lookup_pipeline(self):
         result = []
         for alias in tuple(self.query.alias_map):
-            if (
-                not self.query.alias_refcount[alias]
-                or self.collection_name == alias
-                or isinstance(self.query.alias_map[alias].join_field, EmbeddedModelField)
-            ):
+            if not self.query.alias_refcount[alias] or self.collection_name == alias:
                 continue
             result += self.query.alias_map[alias].as_mql(self, self.connection)
         return result