Why ActiveFilterName= is always empty?

[ZvezdanD]

I need to know a name of the active filter, but this INI key is always empty, even if I choose some filter and restart program.

[PetrCBR]

ActiveFilterName ? We haven't any property like this. In INI file is stored only :
FilterActivated=0
ActiveFilterID=0

but these values are written only at the MM end.

[ZvezdanD]

ActiveFilterName ? We haven't any property like this.

?!? I have this INI key in my [System] section immediately after FilterActivated. I don't use any third-party script except Magic Nodes, so it is only possible that MM wrote it.

Any other way how I could find the name of the active filter?

One more related question: could we get one new event after user change something within filter dialog? Also, event after user change something in Options dialog could be useful.