fixup! [12.0][IMP] base_tier_validation: allow selecting tier definition upon validation request

Author: HviorForgeFlow

base_tier_validation/models/tier_validation.py

@@ -375,7 +375,8 @@ def request_validation(self):
         return created_trs
 
     def action_request_custom_validation(self):
-        wizard = self.env.ref("base_tier_validation.view_tier_validation_selection_wizard")
+        wizard = self.env.ref(
+            "base_tier_validation.view_tier_validation_selection_wizard")
         return {
             "name": _("Select Custom Validation"),
             "type": "ir.actions.act_window",