diff -rupN base_location/models/res_partner.py base_location.patch/models/res_partner.py
--- base_location/models/res_partner.py	2021-08-20 17:44:18.311780135 -0500
+++ base_location.patch/models/res_partner.py	2021-08-21 10:08:31.178805592 -0500
@@ -32,7 +32,7 @@ class ResPartner(models.Model):
     )
     state_id = fields.Many2one(compute="_compute_state_id", readonly=False, store=True)
 
-    @api.depends("state_id", "country_id", "city_id", "zip")
+    @api.depends("state_id", "country_id")
     def _compute_zip_id(self):
         """Empty the zip auto-completion field if data mismatch when on UI."""
         for record in self.filtered("zip_id"):