小工具上传文件不一致

[MarmaladeCat]

Checklist

• The issue has been searched in GitHub Issues
• The issue has been searched in the bbs.halo.run
• Already consulted document

What is version of Halo has the issue?

docker halo:1.5.3

What database are you using?

H2

What is your deployment method?

Docker

Your site address.

No response

What happened?

使用小工具上传markdown文件，再到全部文章中，发现内容不一致，第一个表格的前面部分丢失，文件内容如附件，或者也可以从如下网址https://gitee.com/openeuler-competition/summer2021-101/blob/master/doc/overview.md

overview.md

Relevant log output

No response

Additional information

上传后的样子，可见缺少了前面部分内容

[MarmaladeCat]

日志spring.log没有找到相关的日志，故没上传

[ruibaby]

可以复现，可能与这里有关

halo/src/main/java/run/halo/app/service/impl/PostServiceImpl.java

Lines 339 to 341 in c2e477f

	Map<String, List<String>> frontMatter = MarkdownUtils.getFrontMatter(markdown);
	// remove frontMatter
	markdown = MarkdownUtils.removeFrontMatter(markdown);

将表格的语法当做 FrontMatter 给移除了。

/kind bug

[Simple-Stark]

/assign