Steps to replicate the issue (include links if applicable):
- Create a page with empty string section titles (https://zh.wikipedia.org/w/index.php?title=User_talk:Xiplus/沙盒&oldid=75853077)
- Reply some comment
What happens?:
Section titles with empty string are removed.
https://zh.wikipedia.org/w/index.php?diff=75853083
https://zh.wikipedia.org/w/index.php?diff=75852698
What should have happened instead?:
Do not remove them.
Software version (skip for WMF-hosted wikis like Wikipedia):
Discussion tools 0.0.0 (bbf5fe6)