fix empty expression on PHP 5.4
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@ -185,7 +185,9 @@ class ClassMetadataFactory extends AbstractClassMetadataFactory
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$this->addNestedEmbeddedClasses($embeddableMetadata, $class, $property);
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}
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if (! empty($embeddableMetadata->getIdentifier())) {
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$identifier = $embeddableMetadata->getIdentifier();
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if (! empty($identifier)) {
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$this->inheritIdGeneratorMapping($class, $embeddableMetadata);
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}
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