Since updating from Flux 6.0.2 to the newest Flux TER-Release (7.0.0) I have the problem that all my defined flux:field.select items are switched. I have them defined as an array like this items="{0: {0: 'value shown as a CSS class in the frontend',1: 'value shown in BE'},}". But now I get the BE value in the frontend template.
Also all my content elements from my provider extension are shown twice (without a title) in the backend and the fields defined in the 'Configuration' section of my content element are shown twice.
There's also a RTE field shown at the bottom of my content element that has not been there before.
BE Output: view
Code on Pastebin: http://pastebin.com/CNcphn2k
Any help deeply appreciated.
EDIT: I just set up a fresh instance of TYPO3 6.1.9 (blank package) and installed my extension with the above mentioned content elements. Dependencies were resolved automatically as it should (newest versions). Via the content wizard I tried to create a new element and I get the same result as in my existing install I first noticed this bug in.
EDIT2: I was able to narrow it down to the flux:form.container tag. This duplicates the output in the BE. The select values are still switched though.