In CPAN, is it possible for two different modules to ever share the same tar.gz file name but different authors?

For example, there is a module: Text-Repository-1.04.tar.gz. It resides in $CPAN/authors/id/D/DA/DARREN/Text-Repository-1.04.tar.gz. Is it possible for a different Text-Repository-1.04.tar.gz to ever reside in some other author's directory and be a different module, or are there safeguards in place to prevent this?

I did parse 02packages.details.txt.gz looking for cases where a file name appeared in multiple author directories, but the only one I could find where this had occurred was

HTML-Summary-0.017.tar.gz

which appears in both

A/AW/AWRIGLEY/HTML-Summary-0.017.tar.gz
and
T/TG/TGROSE/HTML-Summary-0.017.tar.gz

However, further investigation reveals that the contents of these files are identical.