values used in queries were added to the keys.csv

Due to a mistake in Tag which added all strings used
by Tag into the String dictionary, the dictionary
did contain all values that were used in queries.

pdb-api/src/test/java/org/lucares/memory/MemoryScale.java

@@ -82,11 +82,11 @@ public class MemoryScale {
 	}
 
 	private static Object createTags1() {
-		return Tags.create("k1", "v1");
+		return Tags.createAndAddToDictionary("k1", "v1");
 	}
 
 	private static Object createTags2() {
-		return Tags.create("k1", "v1", "k2", "v2");
+		return Tags.createAndAddToDictionary("k1", "v1", "k2", "v2");
 	}
 
 	private static Object createTags6() {