$ git clone -n https://src.fedoraproject.org/rpms/perl-CatalystX-Profile.git /var/lib/mock/f45-build-22257-590/root/chroot_tmpdir/scmroot/perl-CatalystX-Profile
Cloning into '/var/lib/mock/f45-build-22257-590/root/chroot_tmpdir/scmroot/perl-CatalystX-Profile'...
$ git fetch origin b93e2ca16aa150b613cb244abc98559a25faa63c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CatalystX-Profile
 * [new ref]         b93e2ca16aa150b613cb244abc98559a25faa63c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b93e2ca Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild