Bug Generator continues to play after being removed

[Alessi42]

Operating System: Windows 10 1809 Bug: If a tone is generated with the Generator clock and not stopped before removing the Generator clock the tone will continue to play with no obvious way to stop the tone.

Steps to Produce:

• Add a new clock
• Change clock source to generator
• Start the generator
• Remove Generator clock object with x button

The sound should continue to play.