asDiscrete: the levels parameter works inconsistently with values of int type

[IKupriyanov-HORIS]

In the legend, I expect the order 3, 2, 1 (reversed, order=-1) for levels=1, 2, 3. The actual order is 2, 1, 3, which looks like the reversed data order, i.e., the levels parameter is ignored:

%useLatestDescriptors
%use lets-plot

val d = mapOf(
    "x" to listOf(0, 1, 2),
    "v" to listOf(3, 1, 2),
)

ggplot(d) + geomPoint { 
    x = "x"; 
    color = asDiscrete("v", levels=listOf(1, 2, 3), order=-1)
}

Without order=-1, the int levels are handled properly:

With doubles, the levels parameters handled properly even with the order parameter:

Version:

Lets-Plot Kotlin API v.4.7.3. Frontend: Notebook with dynamically loaded JS. Lets-Plot JS v.4.3.3.