I'd say you have a bug here of some sort, but I'm not sure if it is a doc bug or a code bug.  Commit specifically does *not* reset the cursors, according to the code, but I'm not even sure what resetting a cursor means :)  I've poked around the sqlite3 module's code a bit, but not enough to have an answer to this.  I do note that a commit does a call to sqlite3_reset on all statements associated with the connection, and I suspect that's where the problem originates.  Which probably makes it a doc bug.