diff --git a/capella2polarion/elements/__init__.py b/capella2polarion/elements/__init__.py
index c08f97ff..48f53103 100644
--- a/capella2polarion/elements/__init__.py
+++ b/capella2polarion/elements/__init__.py
@@ -103,12 +103,9 @@ def post_work_items(ctx: dict[str, t.Any]) -> None:
     ctx
         The context for the workitem operation to be processed.
     """
-    work_items = [
-        wi
-        for wi in ctx["WORK_ITEMS"].values()
-        if wi.uuid_capella not in ctx["POLARION_ID_MAP"]
-    ]
-    for work_item in work_items:
+    for work_item in ctx["WORK_ITEMS"].values():
+        if wi.uuid_capella in ctx["POLARION_ID_MAP"]:
+            continue
         assert work_item is not None
         logger.info("Create work item for %r...", work_item.title)
     if work_items:
diff --git a/capella2polarion/elements/serialize.py b/capella2polarion/elements/serialize.py
index 3a50d308..674c3670 100644
--- a/capella2polarion/elements/serialize.py
+++ b/capella2polarion/elements/serialize.py
@@ -48,7 +48,6 @@ class Condition(t.TypedDict):
     uuid_capella: str | None
     preCondition: Condition | None
     postCondition: Condition | None
-    checksum: str | None
 
 
 def element(