Wiki macros do not display content

The includeLibrary and variant macro aren't displaying their content in some occasions.

It seems to happen after I install a new version of the extension (Use of the XIP importer, then update through the extension manager).

It doesn't happen after an instance restart, a full page refresh or a new user session.

Workaround: re-registering the macros by editing their page and saving them, without changing anything, solves the issue.