[GNC] Default Transaction Date and Duplicate

[Dale Alspach]

If I directly enter a transaction in a register, the default date for that
register gets reset to the date of the newly entered transaction. If I use
"duplicate" to create a new transaction, the default date is not reset. Why?

I now use "duplicate" much more because that is often quicker than dealing
with the current description matching/completion system. However it is
annoying that the default date does not get reset.

Dale

Note: Currently this is the latest flatpak running on Linux Mint 21.1, but
I believe that this behavior has been the same for a long time.