umm that’s a good question. I’m not 100% sure (long time ago…), but I think it remains in this position till the HMI is updated. For this you need to change subpage or page and come back to that page. Somehow after so many firmwares, I’m used to do this to double check very often.
PD: with the very useful plugin Companion plugin for external MIDI control buttons, where you assign an action to a dwarf control and also to CV or midi. The Dwarf is also not updated till you change page/subpage. Only the leds on the footswitches I think are updated cyclically.