title: ADF delete doesn't work
body: <p>I'm trying to delete a row from a database table using action "Delete" in taskflow which is called after a button click. This action has a fixed outcome pointing on "Commit" action. Horrible part is that on one table (in separate task flow) this schema works and on the other table (in separate task flow) - doesn't. 
  That's not all: I've tried to delete a row from the second table using different approaches (and with Java also), and every time I get the row deleted on the view, but not in the database. 
  That's not all TOO: I've implemented "Delete" of the second table row in another application, that uses the same database, and it worked fine!</p>
  
  <p>Does anybody have an idea what the problem is about?</p>