Fix tests

src/test/kotlin/TestFacetBuilders.kt

@@ -41,7 +41,7 @@ class TestFacetBuilders {
     fun `test person facet builder`(params: PersonFacetBuilderParams) {
         val builder = PersonFacetBuilder()
         if (builder.filter(params.source)) {
-            val log = builder.append(params.source)
+            val log = builder.append("key", params.source)
             val result = builder.build()
             assertAll("",
                 { assertThat(log).isEqualTo(params.log) },
@@ -100,14 +100,14 @@ class TestFacetBuilders {
     fun `test multiple person facet builder`() {
         val builder = PersonFacetBuilder()
 
-        builder.append(json {
+        builder.append("key", json {
             obj(
                 Pair(KEYS.atType, NS.rico + "Person"),
                 Pair(KEYS.name, "Einstein, Albert"),
                 Pair(KEYS.agentIsTargetOfCreationRelation, "identifier")
             )
         })
-        builder.append(json {
+        builder.append("key", json {
             obj(
                 Pair(KEYS.atType, NS.rico + "Person"),
                 Pair(KEYS.name, "Albert, Einstein"),