$ git clone -n https://src.fedoraproject.org/rpms/rocm-rpp.git /var/lib/mock/f42-build-3530738-46321/root/chroot_tmpdir/scmroot/rocm-rpp
Cloning into '/var/lib/mock/f42-build-3530738-46321/root/chroot_tmpdir/scmroot/rocm-rpp'...
$ git fetch origin 6c08084078b7b332510e9542db533495d8b98a59:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rocm-rpp
 * [new ref]         6c08084078b7b332510e9542db533495d8b98a59 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c08084 Update to 6.4.0