fix: do not shorten/modify annotation values

closes #202

jupyterhub/spawners.py

@@ -270,8 +270,10 @@ def _expand_user_properties(self, template):
         < 63 character pod names. We keep the last 16 characters which is
         the server name hash.
 
-        Code adapted from
-        https://github.com/jupyterhub/kubespawner/blob/master/kubespawner/spawner.py
+        If the string being processed is not the pod or pvc template,
+        let it pass through.
         """
         rendered = super()._expand_user_properties(template)
-        return rendered if len(rendered) <= 63 else rendered[:47] + rendered[-16:]
+        if template == self.pod_name_template or template == self.pvc_name_template:
+            return rendered if len(rendered) <= 63 else rendered[:47] + rendered[-16:]
+        return rendered