$ git clone -n https://src.fedoraproject.org/rpms/erlang-epam.git /var/lib/mock/f40-build-1507189-23890/root/chroot_tmpdir/scmroot/erlang-epam
Cloning into '/var/lib/mock/f40-build-1507189-23890/root/chroot_tmpdir/scmroot/erlang-epam'...
$ git fetch origin 723aff54b8464d913ecaeacb819a4e8a198260ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-epam
 * [new ref]         723aff54b8464d913ecaeacb819a4e8a198260ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 723aff5 epam ver. 1.0.14