[GNC] Generic Import Matcher GUI

[Dale Alspach]

Flathub gnucash 4.11 on linux mint. QFX file (Quicken) import. File
downloaded  from TIAA.
The help for the import matcher claims that by double clicking on a
transaction that one should be able to check or change the transfer
account. This fails for a transaction matched as new. Double clicking does
nothing. Changing the type to U+C or C allows double clicking to open a
window but discards the transfer account information, shows one side of a
transaction, and does not show any means to add a transfer account.

This seems to me to be a bug. Am I missing something?

Dale