coord_radial incompatible with ggtext::element_markdown

[leandraza]

Hi,
it seems like coord_radial() is incompatible with ggtext::element_markdown, see this minimal example, which produces the error
"Error in elements$text@angle :
no applicable method for @ applied to an object of class "element_markdown"

df <- data.frame(
  x = month.abb[1:6],
  y = 1:6
)

ggplot(df, aes(x, y)) +
  geom_col() +
  coord_radial() +
  theme(axis.text.x = element_markdown(color = "red"))

Package versions used are 0.1.2 (ggtext) and 4.0.2 (ggplot2).