[devtools] "fix" boundary condition for autofill
maxvalue in an IntervalBoundConstraint is inclusive. If the min and max
values happened to coincide, we would call random.choice on an empty
list, which it didn't like.
This is still broken in the case of BoundaryConstraint('>', minvalue),
as we assume the minvalue is in the range, but that's something for
another time.
addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile