$ git clone -n https://src.fedoraproject.org/rpms/lld.git /var/lib/mock/f41-build-side-1-2828521-33537/root/chroot_tmpdir/scmroot/lld
Cloning into '/var/lib/mock/f41-build-side-1-2828521-33537/root/chroot_tmpdir/scmroot/lld'...
$ git fetch origin 177d6e0b93ae19a8de5a503b4cee7ed2ce1988d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lld
 * [new ref]         177d6e0b93ae19a8de5a503b4cee7ed2ce1988d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 177d6e0 Merged into llvm package