Fix exception for non-integer in changelog id, Closes #22

src/api/objects/current_changelog.py

@@ -31,7 +31,10 @@ def _changelog_entry_db_to_json(entry_db: DbResultRow) -> dict:
     modifying_user_id = entry_db["who"]
     table = str(entry_db["table"])
     field = str(entry_db["field"])
+    try:
         id_value = int(entry_db["id_value"])
+    except ValueError:
+        id_value = -1  # There are a few entries in the db which contain a string
     value_old = entry_db["value_old"]
     value_new = str(entry_db["value_new"])