$ git clone -n https://src.fedoraproject.org/rpms/python-gekitchen.git /var/lib/mock/f39-build-1429966-31697/root/chroot_tmpdir/scmroot/python-gekitchen
Cloning into '/var/lib/mock/f39-build-1429966-31697/root/chroot_tmpdir/scmroot/python-gekitchen'...
$ git fetch origin 6a451126ea84d77c69e16329ba65f7f603e18da7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-gekitchen
 * [new ref]         6a451126ea84d77c69e16329ba65f7f603e18da7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a45112 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild