diff --git a/hibernate-envers/src/test/java/org/hibernate/orm/test/envers/integration/lazy/IsCollectionInitializedBytecodeEnhancementTest.java b/hibernate-envers/src/test/java/org/hibernate/orm/test/envers/integration/lazy/IsCollectionInitializedBytecodeEnhancementTest.java
new file mode 100644
index 0000000000..c18d774e86
--- /dev/null
+++ b/hibernate-envers/src/test/java/org/hibernate/orm/test/envers/integration/lazy/IsCollectionInitializedBytecodeEnhancementTest.java
@@ -0,0 +1,93 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.orm.test.envers.integration.lazy;
+
+import java.util.List;
+import jakarta.persistence.EntityManager;
+
+import org.hibernate.dialect.OracleDialect;
+import org.hibernate.envers.query.AuditEntity;
+import org.hibernate.orm.test.envers.BaseEnversJPAFunctionalTestCase;
+import org.hibernate.orm.test.envers.Priority;
+import org.hibernate.orm.test.envers.entities.collection.MultipleCollectionEntity;
+import org.hibernate.orm.test.envers.entities.collection.MultipleCollectionRefEntity1;
+import org.hibernate.orm.test.envers.entities.collection.MultipleCollectionRefEntity2;
+import org.hibernate.testing.SkipForDialect;
+import org.hibernate.testing.TestForIssue;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import static org.junit.Assert.assertEquals;
+import org.hibernate.Hibernate;
+import org.hibernate.envers.AuditReader;
+import org.hibernate.envers.AuditReaderFactory;
+import org.hibernate.testing.bytecode.enhancement.BytecodeEnhancerRunner;
+import org.hibernate.testing.bytecode.enhancement.EnhancementOptions;
+
+/**
+ * @author Fabricio Gregorio
+ */
+@TestForIssue(jiraKey = "HHH-15522")
+@RunWith(BytecodeEnhancerRunner.class)
+@EnhancementOptions(lazyLoading = true)
+@SkipForDialect(value = OracleDialect.class, comment = "Oracle does not support identity key generation")
+public class IsCollectionInitializedBytecodeEnhancementTest extends BaseEnversJPAFunctionalTestCase {
+
+	private Long mce1Id = null;
+	private Long mcre1Id = null;
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class<?>[]{
+				MultipleCollectionEntity.class, MultipleCollectionRefEntity1.class, MultipleCollectionRefEntity2.class
+		};
+	}
+
+	@Test
+	@Priority(10)
+	public void initData() {
+		EntityManager em = getEntityManager();
+
+		// Revision 1 - addition.
+		em.getTransaction().begin();
+		MultipleCollectionEntity mce1 = new MultipleCollectionEntity();
+		mce1.setText( "MultipleCollectionEntity-1-1" );
+		em.persist( mce1 ); // Persisting entity with empty collections.
+		em.getTransaction().commit();
+
+		mce1Id = mce1.getId();
+
+		// Revision 2 - update.
+		em.getTransaction().begin();
+		mce1 = em.find( MultipleCollectionEntity.class, mce1.getId() );
+		MultipleCollectionRefEntity1 mcre1 = new MultipleCollectionRefEntity1();
+		mcre1.setText( "MultipleCollectionRefEntity1-1-1" );
+		mcre1.setMultipleCollectionEntity( mce1 );
+		mce1.addRefEntity1( mcre1 );
+		em.persist( mcre1 );
+		mce1 = em.merge( mce1 );
+		em.getTransaction().commit();
+
+		mcre1Id = mcre1.getId();
+
+		em.close();
+	}
+
+	@Test
+	public void testIsInitialized() {
+		EntityManager em = getEntityManager();
+
+		AuditReader reader = AuditReaderFactory.get( em );
+		List<MultipleCollectionEntity> res = reader.createQuery().forEntitiesAtRevision( MultipleCollectionEntity.class, 1 )
+				.add( AuditEntity.id().eq( mce1Id ) )
+				.getResultList();
+
+		MultipleCollectionEntity ret = res.get( 0 );
+
+		assertEquals( Hibernate.isInitialized( ret.getRefEntities1() ), false );
+
+	}
+}
diff --git a/hibernate-envers/src/test/java/org/hibernate/orm/test/envers/integration/lazy/IsCollectionInitializedTest.java b/hibernate-envers/src/test/java/org/hibernate/orm/test/envers/integration/lazy/IsCollectionInitializedTest.java
new file mode 100644
index 0000000000..0fd4e61474
--- /dev/null
+++ b/hibernate-envers/src/test/java/org/hibernate/orm/test/envers/integration/lazy/IsCollectionInitializedTest.java
@@ -0,0 +1,88 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.orm.test.envers.integration.lazy;
+
+import java.util.List;
+import jakarta.persistence.EntityManager;
+
+import org.hibernate.dialect.OracleDialect;
+import org.hibernate.envers.query.AuditEntity;
+import org.hibernate.orm.test.envers.BaseEnversJPAFunctionalTestCase;
+import org.hibernate.orm.test.envers.Priority;
+import org.hibernate.orm.test.envers.entities.collection.MultipleCollectionEntity;
+import org.hibernate.orm.test.envers.entities.collection.MultipleCollectionRefEntity1;
+import org.hibernate.orm.test.envers.entities.collection.MultipleCollectionRefEntity2;
+import org.hibernate.testing.SkipForDialect;
+import org.hibernate.testing.TestForIssue;
+import org.junit.Test;
+import static org.junit.Assert.assertEquals;
+import org.hibernate.Hibernate;
+import org.hibernate.envers.AuditReader;
+import org.hibernate.envers.AuditReaderFactory;
+
+/**
+ * @author Fabricio Gregorio
+ */
+@TestForIssue(jiraKey = "HHH-15522")
+@SkipForDialect(value = OracleDialect.class, comment = "Oracle does not support identity key generation")
+public class IsCollectionInitializedTest extends BaseEnversJPAFunctionalTestCase {
+
+	private Long mce1Id = null;
+	private Long mcre1Id = null;
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class<?>[]{
+				MultipleCollectionEntity.class, MultipleCollectionRefEntity1.class, MultipleCollectionRefEntity2.class
+		};
+	}
+
+	@Test
+	@Priority(10)
+	public void initData() {
+		EntityManager em = getEntityManager();
+
+		// Revision 1 - addition.
+		em.getTransaction().begin();
+		MultipleCollectionEntity mce1 = new MultipleCollectionEntity();
+		mce1.setText( "MultipleCollectionEntity-1-1" );
+		em.persist( mce1 ); // Persisting entity with empty collections.
+		em.getTransaction().commit();
+
+		mce1Id = mce1.getId();
+
+		// Revision 2 - update.
+		em.getTransaction().begin();
+		mce1 = em.find( MultipleCollectionEntity.class, mce1.getId() );
+		MultipleCollectionRefEntity1 mcre1 = new MultipleCollectionRefEntity1();
+		mcre1.setText( "MultipleCollectionRefEntity1-1-1" );
+		mcre1.setMultipleCollectionEntity( mce1 );
+		mce1.addRefEntity1( mcre1 );
+		em.persist( mcre1 );
+		mce1 = em.merge( mce1 );
+		em.getTransaction().commit();
+
+		mcre1Id = mcre1.getId();
+
+		em.close();
+	}
+
+	@Test
+	public void testIsInitialized() {
+		EntityManager em = getEntityManager();
+
+		AuditReader reader = AuditReaderFactory.get( em );
+		List<MultipleCollectionEntity> res = reader.createQuery().forEntitiesAtRevision( MultipleCollectionEntity.class, 1 )
+				.add( AuditEntity.id().eq( mce1Id ) )
+				.getResultList();
+
+		MultipleCollectionEntity ret = res.get( 0 );
+
+		assertEquals( Hibernate.isInitialized( ret.getRefEntities1() ), false );
+
+	}
+}