Why breeze sends to server originalvaluesMap for unmapped property?

Question

I'm using breeze 1.4.11 with Web Api and EFContextProvider

on client after metadata fetched I extend entity type:

var addressStringProperty = new breeze.DataProperty({
    name: "addressString",
    isUnmapped: true
})
metadataStore.getEntityType('Account').addProperty(addressStringProperty);

this property is computed and used only on client

after entitymanager.saveChanges([accountEntity]) I see on server side in contextprovider.BeforeSaveEntity that entityInfo.OriginalvaluesMap contains Key "AddressString" with Value == null.

same thing with extending entity like:

var accountCtor = function() {
  this.addressString = ko.observable()
};
metadataStore.registerEntityTypeCtor('Account', accountCtor);

How to omit this behaviour?

Answer 1

It's a good question and probably an oversight. I'll add it as a new bug, but... just out of curiousity, why is this problematic for you?