[nvd3] fix single metric showing up in legend #3563
Merged
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blame #3504
In the case where there's a single metric and a one or many dimension, the metric name would not be reported prior to this change, which is the desired behavior. Where before using metric count with gender dimension would give ['female', 'male', 'other'] in both the legend and tooltip, now it says ['count, female', 'count, male', 'count, other']