Code Duplication    Length = 6-6 lines in 2 locations

eZ/Publish/Core/MVC/Symfony/Cache/Http/SignalSlot/AbstractContentSlot.php 2 locations

@@ 53-58 (lines=6) @@
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            $tags[] = 'relation-' . $signal->contentId;
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        }
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        if (isset($signal->locationId)) {
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            // self
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            $tags[] = 'location-' . $signal->locationId;
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            // direct children
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            $tags[] = 'parent-' . $signal->locationId;
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        }
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        if (isset($signal->parentLocationId)) {
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            // direct parent
@@ 60-65 (lines=6) @@
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            $tags[] = 'parent-' . $signal->locationId;
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        }
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        if (isset($signal->parentLocationId)) {
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            // direct parent
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            $tags[] = 'location-' . $signal->parentLocationId;
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            // direct siblings
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            $tags[] = 'parent-' . $signal->parentLocationId;
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        }
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        return $tags;
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    }