fix default field title

app/javascript/template_builder/page.vue

@@ -25,7 +25,7 @@
         :field="item.field"
         :editable="editable"
         :with-field-placeholder="withFieldPlaceholder"
-        :default-field="defaultFields.find((f) => f.name === item.field.name)"
+        :default-field="defaultFieldsIndex[item.field.name]"
         :default-submitters="defaultSubmitters"
         :max-page="totalPages - 1"
         @start-resize="resizeDirection = $event"
@@ -142,6 +142,13 @@ export default {
     }
   },
   computed: {
+    defaultFieldsIndex () {
+      return this.defaultFields.reduce((acc, field) => {
+        acc[field.name] = field
+
+        return acc
+      }, {})
+    },
     defaultFieldType () {
       if (this.drawFieldType) {
         return this.drawFieldType