avoid duplicate data

frontend/src/views/Inbounds.vue

@@ -108,6 +108,8 @@ import { computed, ref } from 'vue'
 import { InTypes, Inbound, InboundWithUser, ShadowTLS, VLESS } from '@/types/inbounds'
 import { Client } from '@/types/clients'
 import { Link, LinkUtil } from '@/plugins/link'
+import Message from '@/store/modules/message'
+import { i18n } from '@/locales'
 
 const appConfig = computed((): Config => {
   return <Config> Data().config
@@ -156,6 +158,11 @@ const closeModal = () => {
   modal.value.visible = false
 }
 const saveModal = (data:Inbound, stats: boolean) => {
+  if (inbounds.value.findIndex(c => c.tag == data.tag) != modal.value.id) {
+    const sb = Message()
+    sb.showMessage(i18n.global.t('error.dplData') + ': ' + i18n.global.t('objects.tag') ,'error', 5000)
+    return
+  }
   // New or Edit
   if (modal.value.id == -1) {
     inbounds.value.push(data)