$ git clone -n https://src.fedoraproject.org/rpms/ktp-contact-runner.git /var/lib/mock/f39-build-2193760-51484/root/chroot_tmpdir/scmroot/ktp-contact-runner
Cloning into '/var/lib/mock/f39-build-2193760-51484/root/chroot_tmpdir/scmroot/ktp-contact-runner'...
$ git fetch origin f71ad88485338c50f03d33f8007920ec02ee15c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ktp-contact-runner
 * [new ref]         f71ad88485338c50f03d33f8007920ec02ee15c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f71ad88 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild