Fix comment in first person.

Author: WaVEV

django_mongodb_backend/compiler.py

@@ -553,8 +553,9 @@ def get_lookup_pipeline(self):
         where = self.get_where()
         promote_filters = defaultdict(list)
         for expr in where.children if where and where.connector == AND else ():
-            # Push only basic lookups (no subqueries or complex conditions).
-            # We push by LHS alias to avoid duplication across subqueries.
+            # Only basic lookups are pushed, no subqueries or complex
+            # conditions. To avoid duplication across subqueries,
+            # only the LHS target table is used.
             if (
                 isinstance(expr, Lookup)
                 and isinstance(expr.lhs, Col)