$ git clone -n https://src.fedoraproject.org/rpms/libreport.git /var/lib/mock/f40-build-735360-106342/root/chroot_tmpdir/scmroot/libreport
Cloning into '/var/lib/mock/f40-build-735360-106342/root/chroot_tmpdir/scmroot/libreport'...
$ git fetch origin d1f5aea9e358aadc68aaa2de63233770be685540:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libreport
 * [new ref]         d1f5aea9e358aadc68aaa2de63233770be685540 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1f5aea Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild