Remove link issue when class attribute is defined

[decinz]

This issue exists on Firefox 2.0.0.3. Doesn't appear to be an issue with IE7.

When a link tag with a defined class attribute is removed using the "Remove link" button, the link tag is converted to a span tag instead of being removed.

1. To reproduce this issue, paste the following into FCKeditor's Source view:

<p>This is some <strong>sample text</strong>. You are using <a href="http://www.fckeditor.net/" class="myCssClass">FCKeditor</a>.</p>

2. Next press the Source button to return to the normal view. Select the link in the editor area and click on the "Remove Link" button.

3. Finally, press the Source button again and you will see that the link tag has been converted to a span tag.

[alfonsoml]

I've created https://bugzilla.mozilla.org/show_bug.cgi?id=378931 about this issue

[alfonsoml]

I've added a testcase in [282] and a fix (manually removing the link tag) in [283]