base pipe does not work inside `preconditions`

This works:

tbl <-
  dplyr::tibble(
    a = c(5, 7, 6, 5, 8, 7),
    b = c(7, 1, 0, 0, 8, 3),
    c = c(1, 1, 1, 3, 3, 3)
  )

tbl |> 
  create_agent() |> 
  rows_complete(
    columns = vars(a, b),
    preconditions = ~ . %>% dplyr::filter(a < 10),
    segments = b ~ c("group_1", "group_2"),
    actions = action_levels(warn_at = 0.1, stop_at = 0.2),
    label = "The `rows_complete()` step.",
    active = TRUE
  ) |> 
  interrogate()

This fails:

tbl |> 
  create_agent() |> 
  rows_complete(
    columns = vars(a, b),
    preconditions = ~ . |>  dplyr::filter(a < 10),
    segments = b ~ c("group_1", "group_2"),
    actions = action_levels(warn_at = 0.1, stop_at = 0.2),
    label = "The `rows_complete()` step.",
    active = TRUE
  ) |> 
  interrogate()

Start with the implementation of rows_complete() and its preconditions handling, then compare how the %>% and |> examples are evaluated. Confirm the failing reproduction and investigate the pipe expression inside the precondition; done means the base-pipe example completes through interrogate() as the magrittr-pipe example does.