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when migrating names from the address book to another list I lose names in other lists

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When I copy a name from the all address books list to another address book list i lose names in other lists already created.

When I copy a name from the all address books list to another address book list i lose names in other lists already created.

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Thunderbird has address books and mailing lists. For a contact to be on a mailing list they have to be in the address book where the mailing list was created. All Address is not a real address book. It is what is says, all addresses in all address books.