newPersonInDefaultSource retains emails and phone numbers

[naqi]

I am working on a App which Syncs new/existing contacts with the default Address book. To avoid duplicates I am searching for person in the AddressBook and if I get any results I simply update the Person. Furthermore, to avoid duplication of phone numbers and email addresses within the Person I do the following,

//Set phone number if exists
if(user.phone){
RHMultiStringValue *phoneMultiValue = [person phoneNumbers];
RHMutableMultiStringValue *mutablePhoneMultiValue = [phoneMultiValue mutableCopy];
if (! mutablePhoneMultiValue) mutablePhoneMultiValue = [[RHMutableMultiStringValue alloc] initWithType:kABMultiStringPropertyType];

    //Avoid Duplicates
    NSInteger phoneIndex = [mutablePhoneMultiValue firstIndexOfValue:user.phone];

    if(phoneIndex == -1){
        [mutablePhoneMultiValue addValue:user.phone withLabel:RHPersonPhoneIPhoneLabel];
        person.phoneNumbers = mutablePhoneMultiValue;
    }
}

//Set email if exists
if( user.email){
    RHMultiStringValue *emailMultiValue = [person emails];

    RHMutableMultiStringValue *mutableEmailMultiValue = [emailMultiValue mutableCopy];
    if (! mutableEmailMultiValue) mutableEmailMultiValue = [[RHMutableMultiStringValue alloc] initWithType:kABMultiStringPropertyType];

    //Avoid duplicates
    NSInteger emailIndex = [mutableEmailMultiValue firstIndexOfValue:user.email];
    if(emailIndex == -1){
        [mutableEmailMultiValue addValue:user.email withLabel:RHWorkLabel];
        person.emails = mutableEmailMultiValue;
    }
}

This works great for users that are already in the AddressBook but when I created a new user with,
[RHPerson newPersonInSource:[self.addressBook defaultSource]];

Things get funky!!
[person emails] and [person phoneNumbers] returns an array with pre-populated values from random contacts in the AddressBook even though a new RHPerson was created.

I did manage to workaround it forcing initialization on setting emails and phoneNumbers when a new Person is created as follows,

person.emails = [[RHMultiStringValue alloc] init];
person.phoneNumbers = [[RHMultiStringValue alloc] init];

This fixed my issue but would like to dig deep as to why this is happening.

[heardrwt]

No idea. Possibly because the created objects are not saved to the store. Feel free to upload a sample project or write a unit-test to exercise the issues you are having and i'll see what i can ascertain.