[BUG] Switch to new colPos value uncomplete

Don't know if 'colPos' => -42 (two times), in /html/typo3/typo3conf/ext/flux/Tests/Fixtures/Data/Records.php should also get changed.
Unfortunatelly I'm still getting the error 'invalid Value ("18181") in backend when creating a new element inside a fluid content element like the bootstrap row.