Fixed bug in creation of topics

owl.py

@@ -1175,11 +1175,14 @@ def admin_edit_topic(sident, cident, tid=None, copy_tid=None):
             return render_template('admin-edit-topic.html', form=form, tid=None, copy_tid=None, post_count=None)
 
         if tid is None:
-            assert form.copy_to.data is not None
-            db_query("INSERT INTO owl_topics(cid, type) VALUES(%s, 'H') RETURNING *", (form.copy_to.data,))
+            if copy_tid is None:
+                cid = g.course.cid
+            else:
+                cid = form.copy_to.data
+                assert cid is not None
+            db_query("INSERT INTO owl_topics(cid, type) VALUES(%s, 'H') RETURNING *", (cid,))
             row = db.fetchone()
             assert row
-            cid = row.cid
             tid = row.tid
             app.logger.info(f"Created topic: cid={cid} tid={tid} by_uid={g.uid}")
         else: