When on various WMF blogs something is posted, most of them may be linked via interwiki syntax.
* If various variants of whitespace are occurring in wikisyntax all will be normalized as ##_## in effective URL.
* Links will break if target post is not using the identical title space normalizing procedure.
Example:
* Posting https://diff.wikimedia.org/2021/03/08/sailing-steady%E2%80%8A-%E2%80%8Ahow-you-can-help-keep-wikimedia-sites-error-free/
* Using two //hair spaces// U+200A around 'en-dash'.
* [[wmfblog:2021/03/08/sailing-steady%E2%80%8A-%E2%80%8Ahow-you-can-help-keep-wikimedia-sites-error-free/]]
* Resolved as https://diff.wikimedia.org/2021/03/08/sailing-steady_-_how-you-can-help-keep-wikimedia-sites-error-free/
* [[ https://meta.wikimedia.org/wiki/Talk:Diff_%28blog%29#Spaces_in_page_topic | Meta talk ]]