OZG-5286 direct set number of Representations

enterprise-adapter/src/main/java/de/ozgcloud/eingang/enterprise/entry/EntryController.java

@@ -72,9 +72,7 @@ public class EntryController {
 
 		var builder = formData.toBuilder();
 		representations.stream().map(this::buildIncomingFile).forEach(builder::representation);
-		var result = builder.build();
-
-		return result.toBuilder().numberOfRepresentations(result.getRepresentations().size()).build();
+		return builder.numberOfRepresentations(representations.size()).build();
 	}
 
 	FormData addAttachments(Collection<MultipartFile> attachments, FormData formData) {

enterprise-adapter/src/test/java/de/ozgcloud/eingang/enterprise/entry/EntryControllerTest.java

@@ -137,6 +137,13 @@ class EntryControllerTest {
 				assertThat(formData.getRepresentations()).hasSize(2);
 			}
 
+			@Test
+			void shouldSetNumberOfRepresentations() {
+				var formData = doPostRequest();
+
+				assertThat(formData.getNumberOfRepresentations()).isEqualTo(2);
+			}
+
 			@SneakyThrows
 			private FormData doPostRequest() {
 				mockMvc.perform(multipart("/antrag")