`I()` is not working with discrete scales

[jospueyo]

I found a problem with using I() with discrete scale and annotate. The text is placed according to the position in the scale and not to the position in the plot. The same plot works as expected with a continuous scale.

Here is the code to reproduce the bug:

library(ggplot2)
library(dplyr)
#> 
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#> 
#>     filter, lag
#> The following objects are masked from 'package:base':
#> 
#>     intersect, setdiff, setequal, union

tibble(
  x = sample(0:10, 100, replace = T),
  y = sample(letters[1:10], 100, replace = T),
) |> 
  ggplot(aes(x = x, y = y)) +
  geom_point() +
  geom_text(
    x = I(0.5),
    y = I(0.5),
    label = "A",
    color = "red"
  )

  tibble(
    x = sample(0:10, 100, replace = T),
    y = sample(0:10, 100, replace = T)
  ) |> 
  ggplot(aes(x = x, y = y)) +
    geom_point() +
    geom_text(
      x = I(0.5),
      y = I(0.5),
      label = "A",
      color = "red"
    )

^{Created on 2025-07-28 with reprex v2.1.1}

[jospueyo]

This is fixed in the development version, according to #6311