$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-Cover.git /var/lib/mock/f39-build-1666685-40803/root/chroot_tmpdir/scmroot/perl-Devel-Cover
Cloning into '/var/lib/mock/f39-build-1666685-40803/root/chroot_tmpdir/scmroot/perl-Devel-Cover'...
$ git fetch origin eb1acc678526a5d956f25051541fa376d02a5c29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-Cover
 * [new ref]         eb1acc678526a5d956f25051541fa376d02a5c29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb1acc6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild