The scanner skips all man pages which contain references, even when those links are self-referential. (Real-world example, see RHBZ# 1622247):

/usr/share/man/man1/ipmicmd.1.gz:
this man page is link to /usr/share/man/man1/ipmicmd.1.gz, skipping

It would be a useful sanity check if the scanner validated links instead of blindly skipping them, i.e. checking that they point to real, valid manpage content, not to missing or invalid destinations.