Huh. Can you LogDebug those values? It seems to me like that check should be <= not strict less than.
As a matter of fact, yes:
28/06/2021 23:29:33 : epoch 60da938f :
nfs-proxy.example.com : ganesha.nfsd-464682[svc_10] HandleMap_GetFH :FSAL :DEBUG :h->fh_len: 55, fsal_handle->len: 16
So, changing a strict < to <= won't help much...
-Nick