Declare the v-model for "dynamic select" widget

tailbone/templates/deform/select_dynamic.pt

@@ -8,6 +8,7 @@
      unicode unicode|str;
      optgroup_class optgroup_class|field.widget.optgroup_class;
      multiple multiple|field.widget.multiple;
+     vmodel vmodel|'field_model_' + name;
      input_handler input_handler|'';"
      tal:omit-tag="">
 
@@ -18,6 +19,7 @@
                             multiple multiple;
                             size size;
                             style style;
+                            v-model vmodel;
                             @input input_handler;">
 
     <option v-for="item in ${name}_options"