id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
10414	IE Problems when entering	swhong		"Enter the letters.

The Select All letters.

Enter the characters again. (Korean)

ex) 

Normal Input: 가나다라

a bug: ㄱ가나다

I think 
_sourc/\plugins/wysiwygarea/plugin.js
// Prevent IE from leaving new paragraph after deleting all contents in body. (#6966)
						if ( CKEDITOR.env.ie && editor.config.enterMode != CKEDITOR.ENTER_P )
						{
							domDocument.on( 'selectionchange', function()
							{
								var body = domDocument.getBody(),
									sel = editor.getSelection(),
									range = sel && sel.getRanges()[ 0 ];

								if ( range && body.getHtml().match( /^<p>&nbsp;<\/p>$/i )
									&& range.startContainer.equals( body ) )
								{
									// Avoid the ambiguity from a real user cursor position.
									setTimeout( function ()
									{
										range = editor.getSelection().getRanges()[ 0 ];
										if ( !range.startContainer.equals ( 'body' ) )
										{
											'''body.getFirst().remove( 1 );'''  >> '''body.getFirst().remove( 0 );'''
											range.moveToElementEditEnd( body );
											range.select( 1 );
										}
									}, 0 );
								}
							});
						}

The problem is solved
"	Bug	new	Normal		General	4.1.1