Steps:

1. Add new layout;
2. Add new style “def_style” in 'Textblock style manager';
3. Add new Textblock;
4. Type some text in the Text field in the Textblock property.
5. Set style “def_style”, check Workspace;
6. Set style “None”, check Workspace;
7. Change text in the Text field in the TextBlock property, check Workspace;

Actual result:
4.Text is not visible with 'None' (default) style.
6.Text is visible with 'None' style.

Expected result:
Same for both cases.