message: fix(ui): refreshing RF region results in empty field
  Fixes
diff: <v-select
  label="RF Region"
  :items="rfRegions"
  - clearable
  - clear-icon="refresh"
  - @click:clear="
  + v-model="node.RFRegion"
  + >
  + <template v-slot:append-outer>
  + <v-btn
  + color="primary"
  + small
  + icon
  + @click="
  apiRequest('updateControllerNodeProps', [
  null,
  ['RFRegion'],
  ])
  "
  - append-outer-icon="send"
  - @click:append-outer="updateRFRegion"
  - v-model="node.RFRegion"
  >
  + <v-icon>refresh</v-icon>
  + </v-btn>
  + <v-btn
  + color="primary"
  + small
  + icon
  + @click="updateRFRegion"
  + >
  + <v-icon>send</v-icon>
  + </v-btn>
  + </template>
  </v-select>
  </v-col>
  </v-row>
  