Fix listing records after publish

CHANGELOG.md

@@ -18,6 +18,7 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 - Prevent duplicate workflow runs by @dennisvang in #628
 - Clean up Dockerfile by @dennisvang in #626
 - Fix index API by @dennisvang in #637 (backward incompatible)
+- Fix listing metadata records after publish by @MarekSuchanek in #658
 
 ## [1.17.2]
 

src/main/java/org/fairdatapoint/api/controller/metadata/GenericController.java

@@ -349,6 +349,9 @@ public ResponseEntity<Model> getMetaDataChildren(
                             if (title1 == null) {
                                 return -1;
                             }
+                            if (title2 == null) {
+                                return 1;
+                            }
                             return title1.compareTo(title2);
                         })
                         .toList();