$ git clone -n https://src.fedoraproject.org/rpms/techtalk-pse.git /var/lib/mock/f39-build-1623340-38929/root/chroot_tmpdir/scmroot/techtalk-pse
Cloning into '/var/lib/mock/f39-build-1623340-38929/root/chroot_tmpdir/scmroot/techtalk-pse'...
$ git fetch origin 463a2920e079b072317f5810852c46fc7f1d7665:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/techtalk-pse
 * [new ref]         463a2920e079b072317f5810852c46fc7f1d7665 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 463a292 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild