Goto slot code creation does not follow c++ indentation

The auto inserted code always has a 4 character indent instead of what is set in options.

Steps to reproduce:

1. Options|Text Editor|Behaviour: Tab size:2 & Indent size:2
2. Options|C++|Edit CodeStyle|General: Tab size:2 & Indent size:2
3. Create form (MainWindow)
4. Put Push Button on form
5. Right click on button and select 'goto slot', select 'clicked()'

What do you see:
Some code is inserted with a code block. The cursor is positioned on the first (and only) empty line in the code block at column 4.

What do you expect:
The cursor should be on column 2.