Also use get_query method when fetching a single record.

flask_admin/contrib/sqla/ajax.py

@@ -57,13 +57,13 @@ class QueryAjaxModelLoader(AjaxModelLoader):
 
         return (getattr(model, self.pk), as_unicode(model))
 
+    def get_query(self):
+        return self.session.query(self.model)
+
     def get_one(self, pk):
         # prevent autoflush from occuring during populate_obj
         with self.session.no_autoflush:
-            return self.session.query(self.model).get(pk)
-
-    def get_query(self):
-        return self.session.query(self.model)
+            return self.get_query().get(pk)
 
     def get_list(self, term, offset=0, limit=DEFAULT_PAGE_SIZE):
         query = self.get_query()