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Give this a try.

UPDATE: replaced "node" by "content".

thx, I will test, but it can take some time as I will be offline for vacation for a couple of weeks soonish.

OK, no problem. Don't forget! ;) ...and have good vacations!
Nb.: I'll apply the patch to 3.0.x as I thinks its good enough, but you can post later here if it needs to be adjusted.