fix create fix type de signalement

src/views/feature_type/Feature_type_edit.vue

@@ -346,11 +346,12 @@ export default {
     },
 
     checkCustomForms() {
-      for (const customForm of this.$refs.customForms) {
-        if (customForm.checkCustomForm() === false) {
-          return false;
+      if (this.$refs.customForms)
+        for (const customForm of this.$refs.customForms) {
+          if (customForm.checkCustomForm() === false) {
+            return false;
+          }
         }
-      }
       return true; //* fallback if all customForms returned true
     },