[TYPO3-core] FYI: Fixed bug #15477: htmlArea RTE: Unlink may unlink the wrong link in IE

[Stanislas Rolland]

FYI: The attached SVN patch was committed.

Type:
Bugfix

Problem:
The error occurs when the unlink button is used in the toolbar or in the 
context menu. It will unlink the link that was set the last time the 
link setting dialogue was used, if any. Thereafter, the unlink button 
will not work until the CE is saved, unless a new link is set...

Solution:
Related to a bug of IE8 whereby the editing selection is lost when the 
editing iframe looses focus. The RTE works around the issue by saving 
the selection before opening a window, and restoring it after. This is 
fine if the unlink tab of the link dialogue is used. But when the unlink 
button is pressed, no window is opened; therefore the selection should 
not be restored for IE.

Bugtracker references:
http://bugs.typo3.org/view.php?id=15477

Branches:
trunk (revision 8693)
TYPO3_4-4 (revision 8694)

Regards,
Stanislas
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