TYPO3 Core

steps to reproduce the bug:

1) fill hard drive (no space left on device in typo3-partition)
2) change mask' ed image in backend
3) let the image mask render in frontend (this won't work, of course)
4) delete files on the hard drive to make space
5) try to render mask'ed image in frontend again

I expected that the mask feature will work again if there is enough file space, but only combining will work, not mask' ing images. Clearing all caches does not help.

Workaround:
Set $dontCheckForExistingTempFile = 1 in file t3lib/class.t3lib_stdgraphic.php, re-render the mask' ed image, the you may set $dontCheckForExistingTempFile = 0 again

I suspect that some rendering results are cached in mysql, though the rendering of masked images was not successful.

(issue imported from #M1455)