$ git clone -n https://src.fedoraproject.org/rpms/sfxr.git /var/lib/mock/f39-build-1558855-37313/root/chroot_tmpdir/scmroot/sfxr
Cloning into '/var/lib/mock/f39-build-1558855-37313/root/chroot_tmpdir/scmroot/sfxr'...
$ git fetch origin e0e3fe61e9599f4ca931a34d0c9212a79d470d2b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sfxr
 * [new ref]         e0e3fe61e9599f4ca931a34d0c9212a79d470d2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0e3fe6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild