$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Uniqid.git /var/lib/mock/f45-build-22993-595/root/chroot_tmpdir/scmroot/perl-Data-Uniqid
Cloning into '/var/lib/mock/f45-build-22993-595/root/chroot_tmpdir/scmroot/perl-Data-Uniqid'...
$ git fetch origin c6e5f7817b7b62de909ae1a81b06130c25820e83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Uniqid
 * [new ref]         c6e5f7817b7b62de909ae1a81b06130c25820e83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6e5f78 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild