Quicken QIF splits import incorrectly when transactions in split accounts are incomplete

I exported my accounts from Quicken. When I import them into moneyGuru some of the split transactions are incomplete, containing only part of the split details. The problem appear to be related to the fact that in the QIF the transaction under the main account shows complete transaction details, but the same transaction under the other accounts only shows the details relevant to those individual accounts. The import code appears to think it has already seen the entire transactions when it actually has only seen and processed part of the transaction.

For example, I have two accounts, Checking and Home, along with a Category called Interest. There is a transaction which transfers $1000 from Checking to Home and Interest ($500 to each). In the QIF, the transactions appears under Checking with the full splits details ($500 to Home and $500 to Interest). But under Home the transaction only shows the $500 from Checking (with no reference to Interest). Similarly, under Interest the transaction only shows the $500 from Checking (with no reference to Home). When this QIf is import, the result is only a single (non-split) $500 transfer from Checking to Home.

I trimmed my qif down to the small test attached. The existing moneyGuru test file transfer_splits.qif is very similar, except the split transaction is fully detailed under each account.

I've looked at the loader/qif.py and loader/base.py code, and I see the code related to seen_account_names. It seems like this may be related, and the code perhaps has to be smarter about figuring out if the transaction it saw was correct (or only partially correct). But I am not sure what that would look like.