$ git clone -n https://src.fedoraproject.org/rpms/fantasdic.git /var/lib/mock/f39-build-1638640-40072/root/chroot_tmpdir/scmroot/fantasdic
Cloning into '/var/lib/mock/f39-build-1638640-40072/root/chroot_tmpdir/scmroot/fantasdic'...
$ git fetch origin 46faaf8b5f4cbb24383cafdf586309250ba9375e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fantasdic
 * [new ref]         46faaf8b5f4cbb24383cafdf586309250ba9375e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46faaf8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild