TYPO3 Core

Please have a look at this snippet from TYPO3 4.5.2:

file: /typo3/sysext/cms/tslib/content/class.tslib_content_form.php
line: 685 - 691

if ($confData['type'] == 'label') {
   $labelLayout = isset($conf['LABEL.']['layout.'])
      ? $this->cObj->stdWrap($conf['LABEL.']['layout'], $conf['LABEL.']['layout.'])
      : $conf['CHECK.']['layout'];
   if ($labelLayout) {
      $result = $labelLayout;
   }
}

You can find a bug here. Within a content element of the type FORM a field defined als "label" will have the layout of "check". Fix: change line 687

from
: $conf['CHECK.']['layout'];

to
: $conf['LABEL.']['layout'];

Greetings