HSEARCH-2194 Test nested @IndexedEmbeddeds where only the second leve…

…l applies an includePaths filter

Not sure it makes sense in Search 6, since I suspect the bug was
completely caused by the older algorithm from Search 5, but I guess one
more test doesn't hurt.

engine/src/test/java/org/hibernate/search/engine/mapper/mapping/building/impl/IndexSchemaNestingContextImplTest.java

@@ -20,6 +20,8 @@
 import org.hibernate.search.engine.backend.document.model.dsl.impl.IndexSchemaNestingContext;
 import org.hibernate.search.engine.mapper.model.spi.MappableTypeModel;
 import org.hibernate.search.util.SearchException;
+import org.hibernate.search.util.impl.common.CollectionHelper;
+import org.hibernate.search.util.impl.test.annotation.TestForIssue;
 
 import org.junit.Rule;
 import org.junit.Test;
@@ -260,6 +262,27 @@ public void indexedEmbedded_includePaths() {
 		checkCompositeExcluded( "level3", level2Context, "level3" );
 	}
 
+	@Test
+	@TestForIssue(jiraKey = "HSEARCH-2194")
+	public void indexedEmbedded_noFilterThenIncludePaths() {
+		IndexSchemaNestingContextImpl rootContext = IndexSchemaNestingContextImpl.root();
+
+		// First level of @IndexedEmbedded: no filter
+		IndexSchemaNestingContextImpl level1Context = checkSimpleIndexedEmbeddedIncluded(
+				"professionnelGC", rootContext, typeModel1Mock, "professionnelGC.",
+				null, null
+		);
+
+		// Second level of @IndexedEmbedded: includePaths filter
+		IndexSchemaNestingContextImpl level2Context = checkSimpleIndexedEmbeddedIncluded(
+				"groupe", level1Context, typeModel1Mock, "groupe.",
+				null, CollectionHelper.asSet( "raisonSociale" )
+		);
+
+		checkLeafIncluded( "raisonSociale", level2Context, "raisonSociale" );
+		checkLeafExcluded( "notRaisonSociale", level2Context, "notRaisonSociale" );
+	}
+
 	@Test
 	public void indexedEmbedded_depth0() {
 		IndexSchemaNestingContextImpl rootContext = IndexSchemaNestingContextImpl.root();