$ git clone -n https://src.fedoraproject.org/rpms/wdiff.git /var/lib/mock/f40-build-791621-137674/root/chroot_tmpdir/scmroot/wdiff
Cloning into '/var/lib/mock/f40-build-791621-137674/root/chroot_tmpdir/scmroot/wdiff'...
$ git fetch origin 3136712eb305c4b696b115f3457926444fb5aa9a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wdiff
 * [new ref]         3136712eb305c4b696b115f3457926444fb5aa9a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3136712 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild