Index: CKEditor/trunk/CHANGES.html
===================================================================
--- CKEditor/trunk/CHANGES.html	(revision 4993)
+++ CKEditor/trunk/CHANGES.html	(revision 4994)
@@ -46,4 +46,5 @@
 	<ul>
 		<li><a href="http://dev.fckeditor.net/ticket/5030">#5030</a> : Fixed CKEDITOR.timestamp wasn't added while loading skin.js.</li>
+		<li><a href="http://dev.fckeditor.net/ticket/4993">#4993</a> : Remove float value of image in case user selects 'not set'.</li>
 		<li><a href="http://dev.fckeditor.net/ticket/4944">#4944</a> : Fixed a bug where nested list structure with inconsequent levels are not pasted correclty from MS-Word.</li>
 		<li><a href="http://dev.fckeditor.net/ticket/4637">#4637</a> : Table cells' 'nowrap' attribute is not loaded to cell property dialog. Thanks to pomu0325.</li>
Index: CKEditor/trunk/_source/plugins/image/dialogs/image.js
===================================================================
--- CKEditor/trunk/_source/plugins/image/dialogs/image.js	(revision 4993)
+++ CKEditor/trunk/_source/plugins/image/dialogs/image.js	(revision 4994)
@@ -1023,5 +1023,5 @@
 															if ( value )
 																element.setStyle( 'float', value );
-															else if ( !value && this.isChanged( ) )
+															else
 																element.removeStyle( 'float' );