[TYPO3-core] FYI: Fixed bug #12782: htmlArea RTE: Editing a link title or target with Firefox 3 sometimes simply unlinks the link

[Stanislas Rolland]

FYI: The attached SVN patch was committed.

Type:
Bugfix

Problem:
In Firefox, due a browser bug, a link must be unlinked before being 
re-created with new attributes values. In some cases with circumstances 
  difficult to reproduce (the link has a class attribute and the title 
or target attribute is being edited, but these are not sufficient 
conditions), Firefox empties the selection after the unlink operation. 
Thus the link cannot be re-created and is therefore simply lost.

Solution:
Bookmark the selection before the unlink operation, and use the bookmark 
to re-establish the selection afterwards.

Bugtracker references:
http://bugs.typo3.org/view.php?id=12782

Branches:
trunk (revision 6657)
TYPO3_4-3 (revision 6658)
TYPO3_4-2 (revision 6659)

Regards,
Stanislas
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