$ git clone -n https://src.fedoraproject.org/rpms/perl-Object-Tiny.git /var/lib/mock/f45-build-25481-611/root/chroot_tmpdir/scmroot/perl-Object-Tiny
Cloning into '/var/lib/mock/f45-build-25481-611/root/chroot_tmpdir/scmroot/perl-Object-Tiny'...
$ git fetch origin 5226d8854a35e9313211e108336dfd2df8f2f200:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Object-Tiny
 * [new ref]         5226d8854a35e9313211e108336dfd2df8f2f200 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5226d88 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild