Translation of `NA` from palette

[teunbrand]

Hi there,

We've been preparing a new major release for ggplot2 and found an issue during a reverse dependency check.
To fix tidyverse/ggplot2#5929, we decided we no longer translate NAs coming from palettes, because they could mean to use a transparent colour.
This violates the following test assumption:

duke/tests/testthat/test-scale_duke_fill_discrete.R

Line 36 in 3328cfb

expect_warning(expect_equal(ggplot2::layer_data(p3)$fill[9], "#B5B5B5"))

You can test your code with the development version of ggplot2 by installing it as follows:

# install.packages("pak")
pak::pak("tidyverse/ggplot2")

We aim to release the new ggplot2 version in about 2 weeks, and hope you can submit a fix to CRAN around that time. Hopefully this will inform you in a timely manner.

Best wishes,
Teun

[teunbrand]

This is just a simple reminder.