diff --git a/src/store/index.js b/src/store/index.js
index 378fbd1..73dfb8d 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -335,7 +335,7 @@ const mutations = {
                 }
             }
         else for (let i = 0; i < tasks.length; i++)
-            if (tasks[i].gid === gid) {
+            if (String(tasks[i].gid) === gid) {
                 state.page = Math.floor(i / state.length) + 1
                 name = state.sortType === "shortName" ? tasks[i].shortName: tasks[i].name
                 break
diff --git a/tests/store.test.mjs b/tests/store.test.mjs
new file mode 100644
index 0000000..3f020b2
--- /dev/null
+++ b/tests/store.test.mjs
@@ -0,0 +1,50 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import fs from 'node:fs'
+import vm from 'node:vm'
+
+function fixture() {
+    let code = fs.readFileSync(new URL('../src/store/index.js', import.meta.url), 'utf8')
+        .replace(/^import .*$/gm, '')
+        .replace('export default new vuex.Store(', 'globalThis.store = new vuex.Store(')
+    const messages = []
+    const axios = {interceptors: {response: {use() {}}}}
+    const context = vm.createContext({axios, vuex: {Store: function (config) {Object.assign(this, config)}},
+        ElMessage: message => messages.push(message), URLSearchParams, console,
+        qs: {stringify: () => ''}})
+    vm.runInContext(code, context)
+    const store = context.store
+    const api = {state: store.state,
+        commit: (name, data) => store.mutations[name](store.state, data),
+        dispatch: (name, data) => Promise.resolve(store.actions[name](api, data))}
+    return {store, messages, axios, api}
+}
+
+test('link search matches a numeric gid and jumps to the right page', () => {
+    const {store, messages} = fixture()
+    store.state.currentTasks = [{gid: 1}, {gid: 2}, {gid: 12345, name: 'sample', shortName: 'sample'}]
+    store.state.length = 2
+    store.mutations._searchLocalByLink(store.state, 'https://example.org/g/12345/key/')
+    assert.equal(store.state.page, 2)
+    assert.match(messages[0], /已跳转/)
+})
+
+test('missing gid still reports no match', () => {
+    const {store, messages} = fixture()
+    store.state.currentTasks = [{gid: 12345}]
+    store.mutations._searchLocalByLink(store.state, 'https://example.org/g/999/key/')
+    assert.equal(messages[0], '未找到此任务')
+})
+
+test('submission reloads persisted status without duplicating a completed task', async () => {
+    const {store, axios, api} = fixture()
+    const gallery = {gid: 123, name: 'sample', status: '下载完成', thumb_link: '', createTime: 1, downloader: 7}
+    store.state.chosenGallery = {...gallery, status: '已提交'}
+    store.state.totalGalleryTask.push(gallery)
+    axios.post = async () => ({data: {result: 'success'}})
+    axios.get = async url => ({data: {result: 'success', data: JSON.stringify(url.endsWith('weekUsedAmount') ? {} : [gallery])}})
+    await store.actions.postGalleryTask(api, {targetResolution: 'original'})
+    assert.equal(store.state.totalGalleryTask.length, 1)
+    assert.equal(store.state.totalGalleryTask[0].status, '下载完成')
+    assert.equal(store.state.chosenGallery, false)
+})