$ git clone -n https://src.fedoraproject.org/rpms/perl-MooseX-Util.git /var/lib/mock/f45-build-25214-610/root/chroot_tmpdir/scmroot/perl-MooseX-Util
Cloning into '/var/lib/mock/f45-build-25214-610/root/chroot_tmpdir/scmroot/perl-MooseX-Util'...
$ git fetch origin aebeb46dd9b83725e3cf9c6f5ac8af8b0ca9b44e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooseX-Util
 * [new ref]         aebeb46dd9b83725e3cf9c6f5ac8af8b0ca9b44e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aebeb46 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild