Not all warnings by sphinx are forwarded as annotations

[christianlupus]

I just found, that not all warnings issued by sphinx are output as GitHub annotations. A current example would be this warning that is clearly readable in the output of the sphinx run but that is not propagated to the list of annotations (see e.g. here).

This might be due to the fact that these missing warnings are within translations, thus Sphinx adds a <translated>:1 in the file name/line number output. Is there potentially a regex involved that fails to trigger here?