$ git clone -n https://src.fedoraproject.org/rpms/erlang-eimp.git /var/lib/mock/f40-build-1507187-23890/root/chroot_tmpdir/scmroot/erlang-eimp
Cloning into '/var/lib/mock/f40-build-1507187-23890/root/chroot_tmpdir/scmroot/erlang-eimp'...
$ git fetch origin 75f4da98bb4597c0e937e0c612da262450621842:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-eimp
 * [new ref]         75f4da98bb4597c0e937e0c612da262450621842 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75f4da9 eimp ver. 1.0.23