Please describe the problem:
In the general ledger, there is always one blank entry at the end of the ledger for adding new transactions (hereafter called the "prototype" transaction).  Normally, the prototype transaction is saved and a new prototype entry is created only if it was modified.  If the prototype was left alone, a new one would not be created, because the old one would still be blank.  In GnuCash 2.0.0, the prototype transaction is saved, even if it is blank, and a new one is always created.  These extra blank transactions are not, however, saved with the rest of the file.

Steps to reproduce:
1. Open the General Ledger.  (This bug does not apply to the individual account registers.)
2. Click on the blank prototype transaction at the bottom.  Do not edit it at all.
3. Click on another transaction.


Actual results:
An extra blank transaction appears.  This can be repeated many times; note that only the last, prototype transaction will trigger this bug, not any of the duplicate blank transactions.

Expected results:
The prototype transaction should only be saved if it was modiied.

Does this happen every time?
This happens every time I deselect the prototype transaction.

Other information:
My guess would be that some new code in 2.0.0 erroneously marks the prototype transaction as modified.