$ git clone -n https://src.fedoraproject.org/rpms/perl-Compress-Raw-Lzma.git /var/lib/mock/f40-build-778998-130140/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Lzma
Cloning into '/var/lib/mock/f40-build-778998-130140/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Lzma'...
$ git fetch origin bf2ce30ac8a6c3f7264407b5456a1d4d2bbc038a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Compress-Raw-Lzma
 * [new ref]         bf2ce30ac8a6c3f7264407b5456a1d4d2bbc038a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf2ce30 Update to 2.209