$ git clone -n https://src.fedoraproject.org/rpms/libu2f-host.git /var/lib/mock/f40-build-785074-133777/root/chroot_tmpdir/scmroot/libu2f-host
Cloning into '/var/lib/mock/f40-build-785074-133777/root/chroot_tmpdir/scmroot/libu2f-host'...
$ git fetch origin 6438f0cc0b1726577770c6f3869bbffa55a17a79:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libu2f-host
 * [new ref]         6438f0cc0b1726577770c6f3869bbffa55a17a79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6438f0c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild