[GNC] Smarter dating of account reconcile

[Geert Janssens]

Op maandag 4 februari 2019 18:19:24 CET schreef DGPickett via gnucash-user:
> It's be smart if, when I hit the reconcile button, it selected the date of
> the 1) oldest transaction 2) not in the future 3) n set to c or y.  After
> all, one cannot hope to reconcile the future, and why set the reconcile date
> any later than the last included transaction?

Why? Because reconciling normally happens against a bank statement and the 
reconcile date should be the bank statement's date which is not necessarily 
the date of the last included transaction.

The current algorithm will calculate the number of days between the last and 
second to last reconcile and will project that period to guess the next 
statement date (and this logic has a couple of flaws so even this doesn't work 
reliably). This of course assumes bank statements are provided at regular 
intervals. That may be a completely flawed assumption, but now at least you 
know how it currently works.

Geert