Bugfix for fiducial circuit line labels #418
Merged
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This is a quick bugfix for issue #396. The fix here is to simply force each of the line labels for candidate fiducial circuits to match the state space labels of the input target model. This is a suboptimal fix looking forward to many-qubit systems (as I mentioned in a comment on #396), but we don't presently have the infrastructure needed for doing this a better way and this fix should be fine for 99% of use cases with ExplicitOpModels in the few-qubit setting.