C++ => Code Style => General => Tab size not read from current setting

In the Code Style setting the "Tab size" value is not taken from the setting that was set with 8.x.y.

In QtCreator 8.0.2 I have a "Tab size" of 3. 

In QtCreator 9.0.0-rc1I shows a "Tab size" of 8.

After switching a "Current setting" to another setting and then back to seeting I had before, the value is shown correctly.

Looks like an initialization problem whit the new Editor?