$ git clone -n https://src.fedoraproject.org/rpms/nutty.git /var/lib/mock/f39-build-1533364-36227/root/chroot_tmpdir/scmroot/nutty
Cloning into '/var/lib/mock/f39-build-1533364-36227/root/chroot_tmpdir/scmroot/nutty'...
$ git fetch origin c469b867db67fbeb7f95105e850bc57a5aa967dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nutty
 * [new ref]         c469b867db67fbeb7f95105e850bc57a5aa967dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c469b86 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild