[IE11]: Applying different numbers to list doesn’t work.

[Jakub Ś]

Variation of #11853.

Problem can be reproduced in IE9-11

1. Open replacebycode.html sample and clean editor contents with New Page command.
2. Create numbered list (e.g. with 4 elements).
3. Select List with Ctrl+A
4. Right-click on list and open List Properties Dialog
5. Change style to upper Roman

Result: In IE11 it is impossible to change numbering.