$ git clone -n https://src.fedoraproject.org/rpms/udpxy.git /var/lib/mock/f39-build-1558250-37303/root/chroot_tmpdir/scmroot/udpxy
Cloning into '/var/lib/mock/f39-build-1558250-37303/root/chroot_tmpdir/scmroot/udpxy'...
$ git fetch origin c5f64f07ce822af832e61c8c651cceb3c1e6d7d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/udpxy
 * [new ref]         c5f64f07ce822af832e61c8c651cceb3c1e6d7d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5f64f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild