$ git clone -n https://src.fedoraproject.org/rpms/perl-Compress-Raw-Lzma.git /var/lib/mock/f45-build-22457-591/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Lzma
Cloning into '/var/lib/mock/f45-build-22457-591/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Lzma'...
$ git fetch origin d804fd72f8be7d8009aff8216833cd25a5b96136:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Compress-Raw-Lzma
 * [new ref]         d804fd72f8be7d8009aff8216833cd25a5b96136 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d804fd7 Disable optional dependencies in RHEL