model permissions created twice when codename has non-ASCII chars

[Pietro Bernardi]

Creating some model permissions I wrongly created one with codename with non-ASCII char.
syncdb created this permission without any error.
Subsequent call of syncdb tries to create it once more, I think, becuse I got error

django.db.utils.IntegrityError: duplicate key value violates unique constraint "auth_permission_content_type_id_key"
DETAIL: Key (content_type_id, codename)=(73, dati_per_contabilità) already exists.

Used RDBMS PostgreSQL with psycopg2 backend
After corrected typo all is OK, so really this non-ASCII was the guilty.

IMHO should be better reject it in first run with "Error - only ASCII chars allowed in codename"

[Tim Graham]

How did you declare the permission? I was able to reproduce the issue like this:

permissions = (
    ('foo à', 'My Permission'),
)

but when I prefixed the first string so that it was unicode (u'foo à'), this fixed the issue.