IE9: Cursor path does not load corectly when editor is switched back from source to wysiwyg

[Krzysztof Studnik]

Environment

IE9 Browser mode IE9, document mode IE9 standards CKEditor set to source

TC

• clear contents
• insert default table
• in first row type some text
• switch to source and back to wysiwyg
• click on first cell in second column (as on attached screenshot)

Expected

caret position is shown in 'status bar of editor'. Example body blockquote table tbody tr td

Actual

The bottom line in Editor is empty, until next operation is done. User is allowed to make nested blockquotes, which is not possible in other browsers (by repeating two last steps and clicking blockquote button).

<blockquote>
  <blockquote>
    <blockquote>
      <table border="1" cellpadding="1" cellspacing="1" style="width: 500px;">
	<tbody>
	  <tr>
		<td>
...

[Krzysztof Studnik]

Empty bottom bar

[Sa'ar Zac Elias]

The patch does not resolve the issue for me.

[Garry Yao]

Rational behind the fix:

1. We guard the selection change as ( to filter those equivilent ones):

if ( !currentPath.compare( this._.selectionPreviousPath ) ) { ... }

2. IE9 doesn't allow to compare live nodes (in current doc) with offline ones (in old doc because of switch mode), throws an error but swalled by a catch.
3. Invalidate the last path cache before unload the doc make it works.

[Sa'ar Zac Elias]

Path does work, but it seems like SVN puts the line in the wrong place, which failed the patch from working.

[Garry Yao]

Fixed with [6441].