How to reproduce: open a .vala file try to comment a line of the code.

Expected behaviour: comment start at the same indentation level of the code

Actual behaviour: comments start from the first line and add an extra tab indentation to the code

Example: python button = Gtk.Button() # ~ button = Gtk.Button() c enum giorni settimana; //~ enum giorni settimana; vala var label = new Gtk.Label (null); //~ var label = new Gtk.Label (null);