In the wiki links deletes the entire line of text

Summary

When linking to other wiki pages on any wiki page with double brackets the entire line of text is deleted.

Steps to reproduce

Just use double brackets on a line with any other text, this example shows the bug clearly:

https://gitlab.com/charuru2009/public-test/wikis/home

Example Project

https://gitlab.com/charuru2009/public-test/wikis/home

What is the current bug behavior?

The text on the line is deleted.

What is the expected correct behavior?

The text on the line is not deleted.

Relevant logs and/or screenshots

https://gitlab.com/charuru2009/public-test/wikis/home

Output of checks

This bug happens on GitLab.com

It also happens on a local install.