diff --git a/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/controller/ModelInteractionServiceImpl.java b/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/controller/ModelInteractionServiceImpl.java
index db05c6212a2..1bb0898aeaa 100644
--- a/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/controller/ModelInteractionServiceImpl.java
+++ b/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/controller/ModelInteractionServiceImpl.java
@@ -279,7 +279,7 @@ public <F extends ObjectType> ModelContext<F> previewChanges(
 		}
 
 		OperationResult result = parentResult.createSubresult(PREVIEW_CHANGES);
-		LensContext<F> context;
+		LensContext<F> context = null;
 
 		try {
 			RepositoryCache.enter();
@@ -315,6 +315,8 @@ public <F extends ObjectType> ModelContext<F> previewChanges(
 			throw new SystemException(e);
 			
 		} finally {
+			LensUtil.reclaimSequences(context, cacheRepositoryService, task, result);
+
 			RepositoryCache.exit();
 		}
 
diff --git a/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/Clockwork.java b/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/Clockwork.java
index dc5956dde84..b9c5330ab6e 100644
--- a/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/Clockwork.java
+++ b/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/Clockwork.java
@@ -1042,7 +1042,7 @@ private <F extends ObjectType> void processClockworkException(LensContext<F> con
 		result.recordFatalError(e);
 		auditEvent(context, AuditEventStage.EXECUTION, null, true, task, result);
 		recordOperationExecution(context, e, task, result);
-		reclaimSequences(context, task, result);
+		LensUtil.reclaimSequences(context, repositoryService, task, result);
 	}
 
 	private <F extends ObjectType> void auditEvent(LensContext<F> context, AuditEventStage stage,
@@ -1591,21 +1591,4 @@ private <F extends ObjectType> Collection<PrismContainerValue<AssignmentType>> d
 		}
 		return processedChangedAssignmentValues;
 	}
-
-	private <F extends ObjectType> void reclaimSequences(LensContext<F> context, Task task, OperationResult result) throws SchemaException {
-		Map<String, Long> sequenceMap = context.getSequences();
-		LOGGER.trace("Context sequence map: {}", sequenceMap);
-		for (Entry<String, Long> sequenceMapEntry: sequenceMap.entrySet()) {
-			Collection<Long> unusedValues = new ArrayList<>(1);
-			unusedValues.add(sequenceMapEntry.getValue());
-			try {
-				LOGGER.trace("Returning value {} to sequence {}", sequenceMapEntry.getValue(), sequenceMapEntry.getKey());
-				repositoryService.returnUnusedValuesToSequence(sequenceMapEntry.getKey(), unusedValues, result);
-			} catch (ObjectNotFoundException e) {
-				LOGGER.error("Cannot return unused value to sequence {}: it does not exist", sequenceMapEntry.getKey(), e);
-				// ... but otherwise ignore it and go on
-			}
-		}
-	}
-
 }
diff --git a/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/LensUtil.java b/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/LensUtil.java
index e00a5547a7b..ab73b14aa4c 100644
--- a/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/LensUtil.java
+++ b/model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/LensUtil.java
@@ -15,13 +15,7 @@
  */
 package com.evolveum.midpoint.model.impl.lens;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
+import java.util.*;
 import java.util.function.Function;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
@@ -42,6 +36,7 @@
 import com.evolveum.midpoint.prism.query.RefFilter;
 import com.evolveum.midpoint.prism.query.builder.QueryBuilder;
 import com.evolveum.midpoint.prism.polystring.AlphanumericPolyStringNormalizer;
+import com.evolveum.midpoint.repo.api.RepositoryService;
 import com.evolveum.midpoint.schema.SchemaConstantsGenerated;
 import com.evolveum.midpoint.schema.util.*;
 import com.evolveum.midpoint.util.DebugUtil;
@@ -1088,4 +1083,24 @@ public static SingleLocalizableMessageType interpretLocalizableMessageTemplate(L
 		}
 		return rv;
 	}
+
+	public static <F extends ObjectType> void reclaimSequences(LensContext<F> context, RepositoryService repositoryService, Task task, OperationResult result) throws SchemaException {
+    	if (context == null) {
+    		return;
+		}
+
+    	Map<String, Long> sequenceMap = context.getSequences();
+		LOGGER.trace("Context sequence map: {}", sequenceMap);
+		for (Map.Entry<String, Long> sequenceMapEntry: sequenceMap.entrySet()) {
+			Collection<Long> unusedValues = new ArrayList<>(1);
+			unusedValues.add(sequenceMapEntry.getValue());
+			try {
+				LOGGER.trace("Returning value {} to sequence {}", sequenceMapEntry.getValue(), sequenceMapEntry.getKey());
+				repositoryService.returnUnusedValuesToSequence(sequenceMapEntry.getKey(), unusedValues, result);
+			} catch (ObjectNotFoundException e) {
+				LOGGER.error("Cannot return unused value to sequence {}: it does not exist", sequenceMapEntry.getKey(), e);
+				// ... but otherwise ignore it and go on
+			}
+		}
+	}
 }