$ git clone -n https://src.fedoraproject.org/rpms/uhd.git /var/lib/mock/f39-build-1562456-37439/root/chroot_tmpdir/scmroot/uhd
Cloning into '/var/lib/mock/f39-build-1562456-37439/root/chroot_tmpdir/scmroot/uhd'...
$ git fetch origin f928391d8d225bfca65bdd8836a95637947dfba6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/uhd
 * [new ref]         f928391d8d225bfca65bdd8836a95637947dfba6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f928391 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild