Hover incorrect when supplying color as argument in add_trace

I tried to create complex plot using add_trace. However there is problem with the hover when supplying color as argument: In this case the first and last element of the trace has no hover, sometimes it is only the first or only the last:

p1 <- plot_ly() |> 
  add_trace(
    type = "scatter",
    mode = "markers",
    x = 1:3,
    y = 1,
    color = 1:3,
    marker = list(colorscale = list(list(0, "red"), list(1, "orange")))
  )
p1

It works fine with

p2 <- plot_ly() |> 
  add_trace(
    type = "scatter",
    mode = "markers",
    x = 1:3,
    y = 1,
    marker = list(color = 1:3, colorscale = list(list(0, "red"), list(1, "orange")))
  )
p2

When doing the equivalent thing in python with

from plotly import graph_objects as go
fig2 = go.Figure()
fig2.add_trace(
    go.Scatter(x=[1,2,3], y=[1,1,1], type="scatter", mode="markers", marker={"color":[1,2,3], "colorscale":[[0,"red"],[1,"orange"]]})
)
fig1 = go.Figure()
fig1.add_trace(
    go.Scatter(x=[1,2,3], y=[1,1,1], type="scatter", mode="markers", color=[1,2,3], marker={"colorscale":[[0,"red"],[1,"orange"]]})
)

you get an error instead of an incorrect graph, which is better, I would claim.

使用提供的 R add_trace 复现作为切入点，比较 p1 与 p2，并检查所报告的端点 hover 行为。当 color-as-argument 情况不再丢失第一个或最后一个点的 hover 信息，且这些示例作为回归检查时，即表示完成。