$ git clone -n https://src.fedoraproject.org/rpms/rust-zvariant_utils.git /var/lib/mock/f40-build-2040925-48396/root/chroot_tmpdir/scmroot/rust-zvariant_utils
Cloning into '/var/lib/mock/f40-build-2040925-48396/root/chroot_tmpdir/scmroot/rust-zvariant_utils'...
$ git fetch origin 6837cb30e306916de56f4348b39f5fa18a9e9e2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zvariant_utils
 * [new ref]         6837cb30e306916de56f4348b39f5fa18a9e9e2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6837cb3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild