TYPO3 Core

As stated in the RTE mailing list [1] there is a nasty sounding JS error window popping when saving child records (more than one) that contain an RTE:

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Error Message:

"SYSTEM ERROR: One or more Rich Text Editors on the page could not be contacted. This IS an error, although it should not be regular.
You can save the form now by pressing OK, but you will loose the Rich Text Editor content if you do.

Please report the error to your administrator if it persists."
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Firebug Debug Output:

data is not defined
setRTEsizeByJS() htmlarea...ressed.js (line 164)

return null;};var setRTEsizeByJS=functio...ty]=RTE[property]?RTE[property]:false;}}
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[1] http://support.typo3.org/projects/rte/m/typo3-rte-typo3-423-and-rte-in-irre-system-error-375711/

(issue imported from #M10024)