Color is removed improperly from partial selections

[Frederico Caldeira Knabben]

1. Open the replacebyclass sample.

2. Hit CTRL+A to select all text.

3. Apply a background color (e.g. yellow).

4. Select "some sample".

5. Apply a different background color (e.g. green).

The yellow background from the " text" bold text will be removed, remaining transparent.

Confirmed with FF 3.6 at least. Works well with the 3.2.

[Frederico Caldeira Knabben]

As expected, the same happens with the foreground color.

[Garry Yao]

Works in IE only.

[Garry Yao]

Oops, affects IE also.
Regression of [5251].

[Frederico Caldeira Knabben]

The change makes sense, even if it still doesn't fix the partial override issue, which must not be handled by this ticket anyway.

I'll be providing a simplified patch.

[Garry Yao]

Fixed with [5343].

[Garry Yao]

Due to the risky explained ​here, this fix is reverted by [5347] and the ticket is expired.