How to reproduce: 1. open the addressbock 2. edit an existing entry 3. change the text field of an existing email address (without clicking at "save") 4. click "OK" Current behavior: the window closes and the address change is lost. Expected behavior: a confirmation dialog should ask me, whether I really want to discard these changes. Other components of claws mail already show the "expected behavior" above, e.g. the filter rules editor. Thank you for your time!