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/
• Meta talk