$ git clone -n https://src.fedoraproject.org/rpms/pstreams-devel.git /var/lib/mock/f45-build-29007-634/root/chroot_tmpdir/scmroot/pstreams-devel
Cloning into '/var/lib/mock/f45-build-29007-634/root/chroot_tmpdir/scmroot/pstreams-devel'...
$ git fetch origin ad3d8c3b0f0fad888daa7811a830b241d10bff35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pstreams-devel
 * [new ref]         ad3d8c3b0f0fad888daa7811a830b241d10bff35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad3d8c3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild