Open a new file and copy/paste this line :
You just can't because Sublime overwrites the next parenthesis: bug ?
I think it's by design.
To enter another closing parenthesis, move past the last parenthesis and add a new one.
Or you can press ')' twice.
Yeah that's working as intended: You can set autoMatchEnabled to false in Default File Type.sublime-options if you'd rather it not do that.
Thanks jps,I've missed autoMatchEnabled.