Compare does not work because we are using int64

[imeckler]

The way UInt64s are handled does not properly install the written comparison function.

I believe this is because uint64 values are actually represented as int64 so the setting of custom functions here does nothing:

    caml_custom_ops["integers:uint64"] =
    { serialize: caml_int64_marshal
    , deserialize: caml_int64_unmarshal
    , hash: caml_int64_hash
    , compare: integers_uint64_compare };

As a result, the compare function for uint64s is the signed compare, and thus does not work correctly.

[hhugo]

I agree with the analysis.

[mrmr1993]

We have a fix for this in MinaProtocol/mina#10284 (thanks @mitschabaude!). I'll try to update here and push to opam sometime over the weekend.