public StorageComparerInterface::hasChanges()
Checks if there are any operations with changes to process.
Until the changelist has been calculated this will always be FALSE.
bool TRUE if there are changes to process and FALSE if not.
\Drupal\Core\Config\StorageComparerInterface::createChangelist()
public function hasChanges();
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Config!StorageComparerInterface.php/function/StorageComparerInterface::hasChanges/8.1.x