feat: 'fix' last submission when submission types change

pretalx_musicrate/__init__.py

@@ -1 +1 @@
-__version__ = "2025.2.0"
+__version__ = "2025.3.0.dev0"

pretalx_musicrate/views.py

@@ -39,15 +39,14 @@ def get_last_submission(settings, submissions, submission=None):
     if submission is not None and submission.state != SubmissionStates.SUBMITTED:
         submission = None
 
-    return (
-        submission
-        or submissions.filter(
-            submission_type__in=settings.submission_types.all(),
-            state=SubmissionStates.SUBMITTED,
-        )
-        .order_by("created")
-        .first()
+    submissions = submissions.filter(
+        submission_type__in=settings.submission_types.all(),
+        state=SubmissionStates.SUBMITTED,
     )
+    if submission is not None and not submissions.filter(pk=submission.pk).exists():
+        submission = None
+
+    return submission or submissions.order_by("created").first()
 
 
 class JoinView(TemplateView):