$ git clone -n https://src.fedoraproject.org/rpms/erlang-erlsyslog.git /var/lib/mock/f45-build-8290-383/root/chroot_tmpdir/scmroot/erlang-erlsyslog
Cloning into '/var/lib/mock/f45-build-8290-383/root/chroot_tmpdir/scmroot/erlang-erlsyslog'...
$ git fetch origin 9e300a05656efb3ebe6fe2bb8848d1290e68eb92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-erlsyslog
 * [new ref]         9e300a05656efb3ebe6fe2bb8848d1290e68eb92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e300a0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild