This tests iterating a "prev" cursor in a read-write transaction while changing records.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


Initial upgrade needed: Old version - 0 New version - 1
Cursor open at key 2
Record 2 deleted, even though that's where the cursor currently points.
Cursor iterated to key 1
Cursor iterated to key 0 with value 'Scary new actual record!'
Initial upgrade versionchange transaction complete
PASS successfullyParsed is true

TEST COMPLETE