API request for an issue that doesn't exist returns full traceback with information about the server (BB-1155)

I'm using api for fetching issue data, and when I send request for issue that doesn't exist I get full traceback with information about the server:

{{{

curl -k https://api.bitbucket.org/1.0/repositories/<some_user>/<some_project>/issues/64/

Piston/0.2.3rc1 (Django 1.2.4) crash report:

Traceback (most recent call last):

File "/opt/python/domains/bitbucket.org/2010-09-28/bitbucket/..
/bitbucket/apps/api/v10/handlers.py", line 1202, in read
return Issue.objects.get(repository=repo, local_id=issue_id)

File "/opt/python/domains/bitbucket.org/2010-09-28
/bitbucket/local/env/lib/python2.7/site-packages
/django/db/models/manager.py", line 132, in get
return self.get_query_set().get(*args, **kwargs)

File "/opt/python/domains/bitbucket.org/2010-09-28
/bitbucket/local/env/lib/python2.7/site-packages
/django/db/models/query.py", line 347, in get
% self.model._meta.object_name)

DoesNotExist: Issue matching query does not exist.
}}}

Showing too much data about the server, file locations etc. is not preferred practice (security reasons). I was expecting: Not found (404).