Opera: unable to turnoff single formatting

[Satya Minnekanti]

To reproduce the defect:

1. Open any sample, click on Bold icon.

2. see that strong tag is shown in elements path bar and bold icon is highlighted in the tool bar.

3. Start typing text & see typed text has bold formatting applied.

4. Click on Bold icon again.

Expected Result: Strong tag not shown in elements path bar, Bold icon not highlighted in the tool bar and when we type the text it should not have any format applied to it.

Actual Result:

strong tag still exists in elements path bar,Bold icon remains highlighted in the tool bar and when we type the text bold format applied to it.

Same behaviour happens with italic,underline, strikethrough,subscript & superscript formatting.

we can remove the format when we have more than one formatting applied to the text.

[Jakub Ś]

#7800 described this probelm but only for subscript/superscript.

[Frederico Caldeira Knabben]

DUP of #6585.