trace shown in hoverinfo despite using hoverinfo='skip'

Coming from here.

After updating from R plotly 4.9.4.1 to 4.10.0 (and therefore updating underlying plotly.js library from v1.57.1 to v2.5.1 as mentioned in the NEWS) using hoverinfo='skip' along with hovermode = 'y unified' still shows a trace - only the trace name is hidden:

library(plotly)

fig <- plot_ly()
fig <- fig %>% add_trace(x = ~2:4, y = ~4:6, name = "yaxis data", mode = "lines+markers", type = "scatter")
fig <- fig %>% add_trace(x = ~4:6, y = ~4:6, name = "yaxis 2 data", mode = "lines+markers", type = "scatter")
fig <- fig %>% add_trace(x = ~6:8, y = ~4:6, name = "omit_hoverinfo", mode = "lines+markers", type = "scatter", hoverinfo='skip')

fig <- fig %>% layout(
  hovermode = 'y unified'
)

fig

Result using R plotly 4.9.4.1:

まず、提供された R の例を hoverinfo='skip' および hovermode='y unified' で再現し、R plotly 4.9.4.1 と 4.10.0 を比較します。次に、plotly.js の基盤となる hover 処理を調査します。スキップされた trace が unified hover の出力に表示されなくなり、他の trace は引き続き表示されれば完了です。