PDC of VST plugins is only updated when starting/stopping the song?

Steps to reproduce:

  1. Take any Meldaproduction plugin: For example MUnison. Open spectral / buffer settings in there.

  2. Add a synth to the track where the melda plugin is. Play it using midi, but do not play the song.

  3. Change the buffer size in the plugin, for example from 2048 to 1024.

  4. Now check PDC report. Renoise still uses the old buffer size.

  5. Now play the song and stop again. The buffer size in PDC is now correct.

Expected behavior:

The buffer size of the plugin should be updated in the moment it is changed (regardless of auto silent on or off).