Steps to replicate the issue (include links if applicable):
If you have a link with 2 or more of the following:
e.g. \[\[Commons:Commons:CRT\]\]
Pipe trick doesn’t work as one would expect—for example, it turns the above link into \[\[Commons:Commons:CRT|Commons:CRT\]\] when it should instead do \[\[Commons:Commons:CRT|CRT\]\].
What is "Pipe trick" and "it"? Please provide clear and full steps to reproduce which leave no room for interpretation, and fill out the complete bug report template instead of deleting sections:
Steps to replicate the issue (include links if applicable)
What happens?
What should have happened instead?
Software version (skip for WMF-hosted wikis like Wikipedia)
Other information (browser name/version, screenshots, etc.)
This seems to work exactly as described on https://en.wikipedia.org/wiki/Help:Pipe_trick.