$ git clone -n https://src.fedoraproject.org/rpms/perl-URI-Fetch.git /var/lib/mock/f45-build-27294-622/root/chroot_tmpdir/scmroot/perl-URI-Fetch
Cloning into '/var/lib/mock/f45-build-27294-622/root/chroot_tmpdir/scmroot/perl-URI-Fetch'...
$ git fetch origin 222dcdfffb9438e0ad640cdf69ea8a2731837321:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-URI-Fetch
 * [new ref]         222dcdfffb9438e0ad640cdf69ea8a2731837321 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 222dcdf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild