TYPO3 Core

Hi,

the "sheet" or category mechanism inside ext_conf_template.txt is completely gone, different cat-sections are displayed on the same "basic" sheet when you click on the configuration button inside extension list.
That wouldnt be so bad, but each section now gets his own submit button. Pressing a submit button in a section overrides all other sections' values and weird stuff is happening.

The cat-mechanism is used in MANY bigger extensions and is a must-have in a follow-up coding of such a central tool as Extension Manager.

Please make this a high-priority bugfix, as many professional extensions and most of our self-made extensions wont work correctly anymore.