Inconsistent Y-axis, when y scale is set to distr: 2 the tick values are displayed as timestamps

Setting scales.y.distr: 2 displays timestamp values for the y-axis ticks, instead of the squashed original y values. The context is that the data points are always integers and represent domain concepts that can never be fractional (e.g. family members count), often small (e.g. 1, 2). Nevertheless uPlot's linear distribution also displays the in-between fractional values, ([1, 1.25, 1.5, 1.75, 2, ..]) as tick labels on the y axis. Rounding them with something like tick.toFixed(0) yields an awkward chart where the y-axis shows duplicates ([1, 1, 1, 2, 2, ..]). I was expecting scales.y.distr: 2 to get rid of the fractional values but instead it shows timestamps. Is this normal behaviour? Does distr option work for the y axis?

https://jsfiddle.net/eytuajg0/61/

Start with the linked JSFiddle and inspect how the y-scale handles scales.y.distr: 2 and generates tick labels for integer-valued data. Confirm whether the option should suppress fractional linear ticks rather than produce timestamps; done means the y-axis shows appropriate integer values without timestamp labels.