Given the following pseudo code:

set flush mode to commit

get object from database

make changes to object

begin transaction

make other changes to the same object

commit transaction

is there any chance (in 2.1.8 or higher) that changes made outside of the transaction block could get written to the database?

Thanks!

What I am really trying to do is make sure that only changes within a transaction block get persisted. All other changes are discarded. Seems the only reliable way to do this is to rollback prior to begin transaction calls.

why don't you just reload the object from the database? That way you would have automatically discarded all changes that were made before.