Fix setting number of digits for verisure lock PIN (#95449)

* Fix error when setting number of digits

* Update test_config_flow.py

Add test for empty code

homeassistant/components/verisure/config_flow.py

@@ -329,7 +329,7 @@ class VerisureOptionsFlowHandler(OptionsFlow):
                     ): int,
                     vol.Optional(
                         CONF_LOCK_DEFAULT_CODE,
-                        default=self.entry.options.get(CONF_LOCK_DEFAULT_CODE),
+                        default=self.entry.options.get(CONF_LOCK_DEFAULT_CODE, ""),
                     ): str,
                 }
             ),

tests/components/verisure/test_config_flow.py

@@ -583,6 +583,15 @@ async def test_reauth_flow_errors(
                 CONF_LOCK_CODE_DIGITS: DEFAULT_LOCK_CODE_DIGITS,
             },
         ),
+        (
+            {
+                CONF_LOCK_CODE_DIGITS: 5,
+            },
+            {
+                CONF_LOCK_CODE_DIGITS: 5,
+                CONF_LOCK_DEFAULT_CODE: "",
+            },
+        ),
     ],
 )
 async def test_options_flow(