Hi,
to resolve a problem with the old TinyMce editor buddypress uses, I had to modify class-bp-xprofile-fiel-type-textarea.php.

But this file might be overwritten on next update. So whats the best way to handle this? Copy it to child theme folder using the same folder structure?
Does this protect it from being overwritten on updates and executed instead of the original one?

Or do I have to use a filter? the_content?? I deleted some functions on this file, so I don’t know if and what kind of filter I can use.