Changing Font Family then Font Size removes HTML source.

[Adhy]

Steps to reproduce

1. Control + A to select entire HTML/source (everything should then be highlighted).
2. Select any font family to change.
3. Select any font size.

Expected result

The HTML should reflect changed font-size and retain HTML/source.

Actual result

After selecting the font-size (Step 3), the HTML/source is removed or seems to be cleared.

Other details (browser, OS, CKEditor version, installed plugins)

Google Chrome, Windows, CKEditor version 4.6.2, installed plugins are the following:

plugins : {

'a11yhelp' : 1, 'autolink' : 1, 'backgrounds' : 1, 'base64image' : 1, 'basicstyles' : 1, 'bgimage' : 1, 'blockquote' : 1, 'chart' : 1, 'clipboard' : 1, 'colorbutton' : 1, 'contextmenu' : 1, 'docprops' : 1, 'elementspath' : 1, 'enterkey' : 1, 'entities' : 1, 'filebrowser' : 1, 'find' : 1, 'floatingspace' : 1, 'font' : 1, 'footnotes' : 1, 'format' : 1, 'horizontalrule' : 1, 'htmlwriter' : 1, 'image' : 1, 'imagepaste' : 1, 'imageresize' : 1, 'imagerotate' : 1, 'indentblock' : 1, 'indentlist' : 1, 'justify' : 1, 'language' : 1, 'lineheight' : 1, 'link' : 1, 'list' : 1, 'liststyle' : 1, 'magicline' : 1, 'maxheight' : 1, 'pagebreak' : 1, 'panelbutton' : 1, 'pastefromword' : 1, 'pastetext' : 1, 'pbckcode' : 1, 'print' : 1, 'quicktable' : 1, 'removeformat' : 1, 'resize' : 1, 'scayt' : 1, 'showblocks' : 1, 'sourcearea' : 1, 'specialchar' : 1, 'stylescombo' : 1, 'stylesheetparser' : 1, 'tab' : 1, 'table' : 1, 'tableresize' : 1, 'tabletools' : 1, 'textsignature' : 1, 'toolbar' : 1, 'undo' : 1, 'uploadimage' : 1, 'wordcount' : 1, 'wsc' : 1, 'wysiwygarea' : 1, 'zoom' : 1

}