Compare: https://api-dev.bugzilla.mozilla.org/latest/bug?id=800000&include_fields=id,resolution and https://api-dev.bugzilla.mozilla.org/latest/bug?id=800000 (note: the bug is currently open, if when you read this it is no longer, substitute for one that is) Expected: A resolution field with value '' returned for both requests. Actual: The first request doesn't return a 'resolution' field, whereas the second one does. Am hitting this in bug 799637, where I'm trying to make TBPL be responsible about which columns it requests. I've worked around it for now, but seems like a bug.
This bug was fixed by the checkin for bug 800835. Gerv