### Describe the bug   ### Validations - [X] Read the [docs](https://rennzhang.github.io/codemirror-editor-vue3/guide/getting-started). - [X] Check that there isn't [already an issue](https://github.com/RennCheung/codemirror-editor-vue3/issues?q=) that reports the same bug to avoid creating a duplicate.
