dynamicTicks changes dateLabels

[bartverweire]

Using dynamicTicks on a plotly object obtained using ggplotly, changes the date labels.
I created a ggplot object, and set the date_labels to "%m/%y".
The ggplotly output changes this date format to "%b %Y"

library(ggplot2)
library(plotly)

x <- seq(as.POSIXct(Sys.Date()), as.POSIXct(Sys.Date() + 365) , by = "months")
y <- seq(1:length(x))
df <- data.frame(x, y)

(p <- ggplot(df, aes(x, y)) +
    geom_point() +
    scale_x_datetime(date_breaks = "1 month", date_labels = "%m/%y") +
    theme(axis.text.x = element_text(angle = 90)))

ggplotly(p, dynamicTicks = TRUE) %>%
  layout(margin = list(b = 70))

The ggplot output :

The ggplotly output :

Removing the dynamicTicks property leaves the x-axis labels unchanged.

This looks like the issue #860, which is already closed.

[cpsievert]

This is to be expected. Please read the documentation https://github.com/ropensci/plotly/blob/master/R/ggplotly.R#L20-L23