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diff --git a/config-model/src/test/java/com/yahoo/schema/derived/TypeConversionTestCase.java b/config-model/src/test/java/com/yahoo/schema/derived/TypeConversionTestCase.java
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+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.schema.derived;
+
+import com.yahoo.config.model.application.provider.BaseDeployLogger;
+import com.yahoo.config.model.test.MockApplicationPackage;
+import com.yahoo.document.DataType;
+import com.yahoo.schema.RankProfileRegistry;
+import com.yahoo.schema.Schema;
+import com.yahoo.schema.AbstractSchemaTestCase;
+import com.yahoo.schema.document.SDDocumentType;
+import com.yahoo.schema.document.SDField;
+import com.yahoo.schema.processing.Processing;
+import com.yahoo.vespa.model.container.search.QueryProfiles;
+import org.junit.Test;
+
+import java.util.Set;
+
+import static org.junit.Assert.assertFalse;
+/**
+ * Tests automatic type conversion using multifield indices
+ *
+ * @author bratseth
+ */
+public class TypeConversionTestCase extends AbstractSchemaTestCase {
+
+    /** Tests that exact-string stuff is not spilled over to the default index */
+    @Test
+    public void testExactStringToStringTypeConversion() {
+        Schema schema = new Schema("test", MockApplicationPackage.createEmpty());
+        RankProfileRegistry rankProfileRegistry = RankProfileRegistry.createRankProfileRegistryWithBuiltinRankProfiles(schema);
+        SDDocumentType document = new SDDocumentType("test");
+        schema.addDocument(document);
+        SDField a = new SDField(document, "a", DataType.STRING);
+        a.parseIndexingScript("{ index }");
+        document.addField(a);
+
+        new Processing().process(schema, new BaseDeployLogger(), rankProfileRegistry, new QueryProfiles(),
+                                 true, false, Set.of());
+        DerivedConfiguration derived = new DerivedConfiguration(schema, rankProfileRegistry);
+        IndexInfo indexInfo = derived.getIndexInfo();
+        assertFalse(indexInfo.hasCommand("default", "compact-to-term"));
+    }
+
+}