How to avoid reset when settings do not change?

Hi there,

while doing my first steps in node development I came across one thing that simply won't work in my tests. When I configure and execute a KNIME node, it will realize any changes to the settings model, i.e. if nothing changes, there will be no reset. However, my nodes always perform a reset, even if I did not touch any option in the dialog.

Perhaps it's due to the fact I use NodeDialogPane and therefore the settings are saved in another fashion... do I just miss something?

If anybody has a clue, please, give me a sign. Thx.