test expected to fail #909
                
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While moving the relion code from
pandasto straight dicts, I noticed what looks to me like a bug in the way the optics properties are expanded by optics group lookup (unless I'm misunderstanding the spec). The current implementation is assuming ordered rows in thedata_opticstable that go from 1-n as far as_rlnOpticsGroupis concerned. Swapping (or shuffling in the general case) the rows should have no effect, but does, as is demonstrated by the failing test here.I'm breaking this into two PRs so they're easier to reason through - one for the expected failing test, the other for the fix that takes the
xfailoff.