type error when clicking on "limit to" with opera

[Julian Taylor]

clicking on "Limit to" on the opportunities site (http://harvest.ubuntu.com/opportunities/) causes a type error with opera 11.01 but not firefox 3.6.13:

TypeError at /opportunities/
'Manager' object is not iterableRequest Method: GET
Request URL: http://harvest.ubuntu.com/opportunities/?pkg=
Exception Type: TypeError
Exception Value: 'Manager' object is not iterable
Exception Location: /usr/lib/pymodules/python2.6/django/db/models/fields/related.py in get_db_prep_lookup, line 162
Python Executable: /usr/bin/python
Python Version: 2.6.5
Python Path: ['/srv/harvest.ubuntu.com/harvest', '/srv/harvest.ubuntu.com', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/lib/python2.6/dist-packages', '/usr/lib/pymodules/python2.6', '/usr/local/lib/python2.6/dist-packages']
Server time: Fri, 18 Feb 2011 19:51:46 +0000

but when using this url (which opera will redirect me too on the click):
http://harvest.ubuntu.com/opportunities/?pkg=
the error also appears in firefor 3.6.13

[Julian Taylor (jtaylor)]

the upper "Limit to" under Packages" is meant
clicking the other under "Opportunities" does not cause problems

[Dylan McCall (dylanmccall)]

Thanks for your bug report, Julian! This was actually happening in every case :o
Turns out the Javascript stuff isn't working in Opera (that's why it really stood out for you; the JS doesn't make server errors very obvious), so I'm filing another bug report for that. I went ahead and filed that at bug #722947.