$ git clone -n https://src.fedoraproject.org/rpms/rust-lcms2.git /var/lib/mock/f40-build-2073074-49350/root/chroot_tmpdir/scmroot/rust-lcms2
Cloning into '/var/lib/mock/f40-build-2073074-49350/root/chroot_tmpdir/scmroot/rust-lcms2'...
$ git fetch origin 920a24ca4bb59f21e8143df97394e05bbc65b2ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lcms2
 * [new ref]         920a24ca4bb59f21e8143df97394e05bbc65b2ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 920a24c Initial Fedora packaging (rhbz#2233226)