saving the size of the TinyMCE in a cookie won't work as we always have different RTE ids
as we now use
$parentObject->RTEcounter = rand();
to generate a unique number for the RTE it will always be different. It has no connection to the content id.
Using this TinyMCE can't save the size (if resizing) and apply it again if reopened as this would need a same id for both calls.
We should only use a random number if needed.
Would be multiple RTEs in one content element? TV FCEs? and IRRE?
How to detect that?