ggplotly does not show point size legend for geom_point

When using ggploty on a geom_point plot the point size legend is not shown.

Minimal example to reproduce:

library(ggplot2)
library(plotly)

p <- ggplot(mtcars, aes(x = wt, 
                        y = mpg, 
                        size = qsec))
p <- p + geom_point()
ggplotly(p)

Expected output from ggplot:

Ouput of ggplotly:

It does, however, show the color legend.

p <- ggplot(mtcars, aes(x = wt, 
                        y = mpg, 
                        color = qsec))
p <- p + geom_point()
ggplotly(p)

Freshly installed R 4.2.1, plotly_4.10.0 and ggplot2_3.3.6.

首先通过 ggplotly 运行最小 R 示例，并将其大小图例与颜色图例示例进行比较。跟踪 ggplotly 对 geom_point 美学映射的转换；当生成的图显示点大小图例，同时保留现有颜色图例行为时，即表示完成。