#626 bang~ broken

[Jamie Bullock]

bang~ doesn't work if it is created whilst DSP is on, but there is no existing DSP graph on the canvas.

Steps to reproduce:

- ensure that DSP is on
- Create a new patcher
- add a [bang~]
- add a [print]
- connect them up

No 'bang' printed to console as it should be.

Interestingly the bug can't be reproduced through dynamic patching. See attached patch.

[Jamie Bullock]

[Hans-Christoph Steiner]

Hey Miller, we confirmed this at the last patching circle, so I'm assigning it to you.