Check SubSelectPalettesListener if we can not work without DCA

[zonky2]

my be..??

in https://github.com/contao-community-alliance/meta-palettes/blob/7a34d0ae2bca73ac649c4256853f82245e1bc5ec/src/Listener/SubSelectPalettesListener.php

see

meta-palettes/src/Listener/BuildPalettesListener.php

Lines 65 to 75 in 7a34d0a

	// We can not work without DCA.
	if (!(isset($GLOBALS['TL_DCA'][$strTable]) && is_array($GLOBALS['TL_DCA'][$strTable]))) {
	return;
	}
	// The MetaPalettesBuilder is used for DC_General
	if (isset($GLOBALS['TL_DCA'][$strTable]['config']['dataContainer'])
	&& $GLOBALS['TL_DCA'][$strTable]['config']['dataContainer'] == 'General'
	) {
	return;
	}

[dmolineus]

The SubSelectPalettesListener is only registered after the mentioned check above. So afaik it's not required adding the check again.

meta-palettes/src/Listener/BuildPalettesListener.php

Line 79 in 7a34d0a

$this->registerSubSelectPalettesCallback($strTable);

However #44 indicates that the DC General mix something up so that the issue occurs. Imho this has to be checked at the DC General site first, how #44 could ever happen. /cc @baumannsven