Free memory after releasing lookupSourceSupplier

Author: sopel39

core/trino-main/src/main/java/io/trino/operator/join/HashBuilderOperator.java

@@ -388,10 +388,10 @@ public ListenableFuture<Void> startMemoryRevoke()
                 lookupSourceFactory.setPartitionSpilledLookupSourceHandle(partitionIndex, spilledLookupSourceHandle);
                 lookupSourceNotNeeded = Optional.empty();
                 index.clear();
-                localUserMemoryContext.setBytes(index.getEstimatedSize().toBytes());
-                localRevocableMemoryContext.setBytes(0);
                 lookupSourceChecksum = OptionalLong.of(lookupSourceSupplier.checksum());
                 lookupSourceSupplier = null;
+                localUserMemoryContext.setBytes(index.getEstimatedSize().toBytes());
+                localRevocableMemoryContext.setBytes(0);
                 state = State.INPUT_SPILLED;
             });
             return spillIndex();