notch filter unwanted reset

several filters work not as expected while editing settings.

The play command (spacebar) changes filter settings, unwanted...

steps to repro

setup a sequence with audio notch filter.

open the filter dialogue

change notch width

hit play (any play button or spacebar)

the notch width changes back earlier (unwanted) state...

This happens with more filters, spacebar resets the last selected button in the open filter window...