Unwanted left trim on line break

Hello. What is the reason that codemirror trimming line when line breaking? Can I avoid this?

Ok, I found it in source code and it looks like this is not configurable :-\ https://github.com/codemirror/CodeMirror/blob/41d73785ae1b0976b20dc27a6d5ae92cd3ca785e/lib/codemirror.js#L5793

You can bind another (self-defined) command to Enter if you want, so this is configurable.