$ git clone -n https://src.fedoraproject.org/rpms/bless.git /var/lib/mock/f41-build-side-1-3011220-36855/root/chroot_tmpdir/scmroot/bless
Cloning into '/var/lib/mock/f41-build-side-1-3011220-36855/root/chroot_tmpdir/scmroot/bless'...
$ git fetch origin a3e6034d832725cff25630eee837ad21cd214971:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bless
 * [new ref]         a3e6034d832725cff25630eee837ad21cd214971 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3e6034 convert GPLv2+ license to SPDX