isChangeFlags property
Derivation chain for each UTXO (parallel to utxoKeys): true when the UTXO's address is on the change chain (m/1/{index}), false for the receive chain (m/0/{index}). Entries beyond the list's length, or an empty list, mean "resolve the chain from the aggregate's own address records", which is correct for every address the aggregate generated or discovered itself.
Implementation
final List<bool> isChangeFlags;