[TYPO3] problem with save buttons in 4.2.0

[Matyi Gábor]

It can happeans, that in the fileadmin folder uploaded images are deleted. If these images is added as image in a tt_news record, I get php warning within the BE. I guess, this is normal. But in the 4.2.0 these warnings interferee with the save buttons, so if I  remove the deleted images from the image list, I can't save it. Now I have to delete these entries from the tt_news table direct with phpmyadmin.