Merge 'selectRequired'

extension/Classes/Core/AbstractBuildForm.php

@@ -1479,6 +1479,7 @@ abstract class AbstractBuildForm {
             $attribute .= Support::doAttribute('value', htmlentities($value), false);
         }
 
+
         $attribute .= $this->getAttributeList($formElement, [FE_INPUT_AUTOCOMPLETE, 'autofocus', 'placeholder']);
 
         $formElement[FE_CHECK_PATTERN] = Sanitize::getInputCheckPattern($formElement[FE_CHECK_TYPE], $formElement[FE_CHECK_PATTERN]