Possible NullPointerException when an xobject is deleted

2024-08-29 23:00:10,523 [FAILED - Replication receiver] ERROR .o.i.DefaultObservationManager - Failed to send event [org.xwiki.bridge.event.DocumentUpdatingEvent@ff0ada73] to listener [org.xwiki.contrib.urlnormalizer.internal.URLNormalizerListener@5f062729] 
java.lang.NullPointerException: null
	at org.xwiki.contrib.urlnormalizer.internal.ModifiedObjectDocumentNormalizer.normalize(ModifiedObjectDocumentNormalizer.java:71)
	at org.xwiki.contrib.urlnormalizer.internal.DefaultURLNormalizationManager.applyNormalizers(DefaultURLNormalizationManager.java:179)
	at org.xwiki.contrib.urlnormalizer.internal.DefaultURLNormalizationManager.normalize(DefaultURLNormalizationManager.java:131)
	at org.xwiki.contrib.urlnormalizer.internal.DefaultURLNormalizationManager.normalize(DefaultURLNormalizationManager.java:80)
	at org.xwiki.contrib.urlnormalizer.internal.URLNormalizerListener.normalize(URLNormalizerListener.java:100)
	at org.xwiki.contrib.urlnormalizer.internal.URLNormalizerListener.onEvent(URLNormalizerListener.java:83)
	at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:320)
	at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:285)
	at com.xpn.xwiki.XWiki.beforeSave(XWiki.java:2015)
	at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:2074)
	at org.xwiki.contrib.replication.entity.internal.update.DocumentUpdateReplicationReceiver.update(DocumentUpdateReplicationReceiver.java:149)
	at org.xwiki.contrib.replication.entity.internal.update.DocumentUpdateReplicationReceiver.receiveDocument(DocumentUpdateReplicationReceiver.java:93)
	at org.xwiki.contrib.replication.entity.internal.AbstractDocumentReplicationReceiver.receiveEntity(AbstractDocumentReplicationReceiver.java:78)
	at org.xwiki.contrib.replication.entity.internal.AbstractEntityReplicationReceiver.receive(AbstractEntityReplicationReceiver.java:57)
	at org.xwiki.contrib.replication.internal.message.ReplicationReceiverMessageQueue.handle(ReplicationReceiverMessageQueue.java:146)
	at org.xwiki.contrib.replication.internal.message.ReplicationReceiverMessageQueue.handle(ReplicationReceiverMessageQueue.java:56)
	at org.xwiki.contrib.replication.internal.message.AbstractReplicationMessageQueue.handleFailed(AbstractReplicationMessageQueue.java:190)
	at org.xwiki.contrib.replication.internal.message.AbstractReplicationMessageQueue.runError(AbstractReplicationMessageQueue.java:172)
	at java.base/java.lang.Thread.run(Thread.java:829)