Vant 4.8.11 Highlight 高亮文本 当没有需要高亮的文本时源文本不显示

[IT-huazai]

重现链接

https://codesandbox.io/p/devbox/vant-4-issue-template-forked-fwlpwy?layout=%257B%2522sidebarPanel%2522%253A%2522EXPLORER%2522%252C%2522rootPanelGroup%2522%253A%257B%2522direction%2522%253A%2522horizontal%2522%252C%2522contentType%2522%253A%2522UNKNOWN%2522%252C%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522id%2522%253A%2522ROOT_LAYOUT%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522UNKNOWN%2522%252C%2522direction%2522%253A%2522vertical%2522%252C%2522id%2522%253A%2522clven1tgb00073j6hw62zkk04%2522%252C%2522sizes%2522%253A%255B70%252C30%255D%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522EDITOR%2522%252C%2522direction%2522%253A%2522horizontal%2522%252C%2522id%2522%253A%2522EDITOR%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522EDITOR%2522%252C%2522id%2522%253A%2522clven1tgb00023j6hu0we546q%2522%257D%255D%257D%252C%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522SHELLS%2522%252C%2522direction%2522%253A%2522horizontal%2522%252C%2522id%2522%253A%2522SHELLS%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522SHELLS%2522%252C%2522id%2522%253A%2522clven1tgb00043j6hr4vz3dkg%2522%257D%255D%252C%2522sizes%2522%253A%255B100%255D%257D%255D%257D%252C%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522DEVTOOLS%2522%252C%2522direction%2522%253A%2522vertical%2522%252C%2522id%2522%253A%2522DEVTOOLS%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522DEVTOOLS%2522%252C%2522id%2522%253A%2522clven1tgb00063j6h53g7n310%2522%257D%255D%252C%2522sizes%2522%253A%255B100%255D%257D%255D%252C%2522sizes%2522%253A%255B50%252C50%255D%257D%252C%2522tabbedPanels%2522%253A%257B%2522clven1tgb00023j6hu0we546q%2522%253A%257B%2522tabs%2522%253A%255B%257B%2522id%2522%253A%2522clven1tgb00013j6hyhf54c44%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522FILE%2522%252C%2522filepath%2522%253A%2522%252Fsrc%252Findex.js%2522%252C%2522state%2522%253A%2522IDLE%2522%257D%252C%257B%2522id%2522%253A%2522clven4yji006b3j6hfrs27zjo%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522FILE%2522%252C%2522initialSelections%2522%253A%255B%257B%2522startLineNumber%2522%253A7%252C%2522startColumn%2522%253A9%252C%2522endLineNumber%2522%253A7%252C%2522endColumn%2522%253A9%257D%255D%252C%2522filepath%2522%253A%2522%252Fsrc%252FApp.vue%2522%252C%2522state%2522%253A%2522IDLE%2522%257D%255D%252C%2522id%2522%253A%2522clven1tgb00023j6hu0we546q%2522%252C%2522activeTabId%2522%253A%2522clven4yji006b3j6hfrs27zjo%2522%257D%252C%2522clven1tgb00063j6h53g7n310%2522%253A%257B%2522tabs%2522%253A%255B%257B%2522id%2522%253A%2522clven1tgb00053j6h1m12ddrr%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522TASK_PORT%2522%252C%2522taskId%2522%253A%2522dev%2522%252C%2522port%2522%253A8080%252C%2522path%2522%253A%2522%252F%2522%257D%255D%252C%2522id%2522%253A%2522clven1tgb00063j6h53g7n310%2522%252C%2522activeTabId%2522%253A%2522clven1tgb00053j6h1m12ddrr%2522%257D%252C%2522clven1tgb00043j6hr4vz3dkg%2522%253A%257B%2522tabs%2522%253A%255B%257B%2522id%2522%253A%2522clven1tgb00033j6hj97g9y7j%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522TASK_LOG%2522%252C%2522taskId%2522%253A%2522dev%2522%257D%255D%252C%2522id%2522%253A%2522clven1tgb00043j6hr4vz3dkg%2522%252C%2522activeTabId%2522%253A%2522clven1tgb00033j6hj97g9y7j%2522%257D%257D%252C%2522showDevtools%2522%253Atrue%252C%2522showShells%2522%253Atrue%252C%2522showSidebar%2522%253Atrue%252C%2522sidebarPanelSize%2522%253A15%257D

Vant 版本

4.8.11

描述一下你遇到的问题。

Highlight 高亮文本
使用场景：搜索关键字
预期效果：有搜索关键字时搜索结果高亮搜索关键字，没有搜索关键字则显示源文本
实际效果：有搜索关键字时符合预期效果，没有搜索关键字时源文本未显示

重现步骤

1、创建Highlight
2、将keywords 的值设置为空字符串或null

设备/浏览器

No response