libpd/libpd — comment on commit 2cc78c2e6b7c9f12f6a5d62fcdf9aa9c664c31da
File: objc/PdAudioController.m line 150
By reakinator:

As I mentioned in my email, this !isAmbient check will not allow mixing with the ambient session, although it has been tested and works. It seems ok to skip the check, and see the property every time whether 0 or 1 (also, this will ensure people can reconfigure)