copied bold content not editable

[yiminghe]

if user copy content from web somewhere to ckeditor ,the html code is "<span style="font-weight: bold;">bold</span>",the editor's bold button (alway off state) is unusable for copied content.

and if i change coreStyles_bold to

{ element        : 'span',
                styles        : { 'font-weight' : 'bold' },
                overrides    : [
                    { element : 'b' },
                    { strong : 'strong' },
                ] };

when user copy "<b>bold</b>" to sourcearea ,and place cursor in the middle of bold (do not select a character) at wysiwyg mode ,the bold button's state is on,but if clicked ,nothing happened

i modified code file (ckeditor 3.4) : _source/plugins/styles/plugin.js line 603

from

removeFromElement( this, element );

to

if ( element.getName() == this.element )
						removeFromElement( this, element );
					else
						removeOverrides( element, getOverrides( this )[ element.getName() ] );

problem solved ,hope helpful