[Enter BR and IE] Problems when entering text in Korean

[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

[Jakub Ś]

This took me quite a while to reproduce but here goes:

1. Open enter key sample, select all text and delete it
2. Set Operating System language to Korean and keyboard to Han (Please see attached image).
3. Type any characters
4. Select all and type: "rk" left arrow, "sk" left arrow, "ek" left arrow, "fk" left arrow

Result: after inserting 가 on selected text the result actually is ㄱ가

Problem can be reproduced in all versions of IE from CKEditor 3.5.3 rev. [6486] in both CKE 3.x and 4.x.

[Jakub Ś]

This issue and #8854 concern same problem.

[Jakub Ś]

I have attached few files showing that typing fast and repeatedly rk+Enter and/or rk+right arrow sometimes inserts rrk (ㄱ가 ).

[Jakub Ś]

Additional reproduction scenario and screen cast can be found under support ticket no. 8963.

[Jakub Ś]

Another two issues concerning Korean characters: #12415, #12910.