Clear trackWrites on destroy to prevent memory leak

[schontz]

I did some memory profiling and came across an orphaned editor in a detached DOM node. It looks to be related to trackWrites:

This patch clears trackWrites on destroy to prevent this case.

[marijnh]

This is a link from the editor object, which you supposedly dropped references to, to a DOM node. I do not see how this would be able to introduce a leak. Do you have an example script that demonstrates this?

[schontz]

I'll see if I can make a minimal repro of it. I was debugging our app in production, which uses tiptap on top of prose mirror.