Empty links get deleted

This is a design feature rather than a bug. Empty links in the text editor will get deleted when the text is saved. This is to prevent 'invisible' links to pages within the website, which would prevent the target page being deleted.

Workaround

Put something in the link. This can just be a carriage return.

e.g.

<a></a> - will get deleted

<a>
</a> - will not get deleted