[HZ-5351] C++ Client doesn't sort field names during compact schema creation #1409
Description
The compact schema class doesn't sort all of its fields by name before creating the Rabin fingerprint.
Its constructor receives an unordered map of fields, so it is not possible to pass a sorted list of fields to it.
Its best to sort the fields in the constructor, like the Java Client.
The expected behavior is: schema objects with the same fields must have the same Rabin fingerprint, regardless of their order in the schema.
See hazelcast/hazelcast-nodejs-client#1576 for the Node.js Client issue.