Toggle pre is not working

[SynthesOne]

Hello, can you help me?
The project is just fine, but there is one problem that I couldn't solve on my own. Your togglePre(range: NSRange) method is not working.
I attach a video of your example, in which I changed the button responsible for the toggleCode(range: NSRange) method to togglePre(range: NSRange). The pre tag is turned on, but it is not turned off anymore.

RPReplay_Final1701837543.MP4