$ git clone -n https://src.fedoraproject.org/rpms/erlang-p1_oauth2.git /var/lib/mock/f40-build-1625955-24117/root/chroot_tmpdir/scmroot/erlang-p1_oauth2
Cloning into '/var/lib/mock/f40-build-1625955-24117/root/chroot_tmpdir/scmroot/erlang-p1_oauth2'...
$ git fetch origin b584d8b792821afe823309427523642e591a233f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-p1_oauth2
 * [new ref]         b584d8b792821afe823309427523642e591a233f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b584d8b Update to 0.6.14