$ git clone -n https://src.fedoraproject.org/rpms/erlang-p1_pgsql.git /var/lib/mock/f45-build-8391-388/root/chroot_tmpdir/scmroot/erlang-p1_pgsql
Cloning into '/var/lib/mock/f45-build-8391-388/root/chroot_tmpdir/scmroot/erlang-p1_pgsql'...
$ git fetch origin 426826634104680a3d5f4de2dcbd598115c107fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-p1_pgsql
 * [new ref]         426826634104680a3d5f4de2dcbd598115c107fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4268266 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild