$ git clone -n https://src.fedoraproject.org/rpms/erlang-gpb.git /var/lib/mock/f41-build-side-1-3104714-39368/root/chroot_tmpdir/scmroot/erlang-gpb
Cloning into '/var/lib/mock/f41-build-side-1-3104714-39368/root/chroot_tmpdir/scmroot/erlang-gpb'...
$ git fetch origin 44232ca431b838f8bd521d6616709528945ed359:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-gpb
 * [new ref]         44232ca431b838f8bd521d6616709528945ed359 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44232ca Obsolete erlang-protobuffs