Adapt email subject templating functionality to different value types.

Author: folix-01

CHANGES.rst

@@ -4,7 +4,8 @@ Changelog
 3.2.1 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Adapt email subject templating functionality to different value types.
+  [folix-01]
 
 
 3.2.0 (2024-11-15)

src/collective/volto/formsupport/restapi/services/submit_form/post.py

@@ -178,7 +178,7 @@ def get_subject(self):
 
             for match in matches:
                 if field_id in match:
-                    subject = subject.replace(match, i.get("value"))
+                    subject = subject.replace(match, str(i.get("value")))
 
         return subject