$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Server-Simple-Mason.git /var/lib/mock/f39-build-1634739-39821/root/chroot_tmpdir/scmroot/perl-HTTP-Server-Simple-Mason
Cloning into '/var/lib/mock/f39-build-1634739-39821/root/chroot_tmpdir/scmroot/perl-HTTP-Server-Simple-Mason'...
$ git fetch origin 9feed75ee53336ae1bd9f21c1b5f8268fd4635d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Server-Simple-Mason
 * [new ref]         9feed75ee53336ae1bd9f21c1b5f8268fd4635d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9feed75 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild