IE: collapsed selection doesn't match styling.

[Jakub Ś]

Problem can be reproduced from CKEditor 4.0 (works fine in 4.0 beta) in IE9-11.

To reproduce for inline styles:

1. Create a paragraph and enter text, say "This is plain text"
2. Select whole paragraph and apply Bold
3. Click once inside paragraph and try to apply any inline style from styles dropdown.

Result: In IE, the inline style gets applied to whole paragraph even when text was not selected after clicking once.

---

To reproduce for block styles:

1. Create 3 paragraphs of text
2. Select them all with a mouse and apply "Italic Title" from styles dropdown.
3. Click at the end of second element (behind it actually)
4. Apply "Special Container" style

Result: all paragraphs get styled while only should be changed.

NOTE: This issue has been reported on our support channel. User claims that the range.collapsed property returns false in IE whereas in e.g Chrome it returns true.