tab_row_group() failing with LateX

[olivroy]

library(gt)
tmp <- tibble(
  group = c("A", "A"),
  variable = c("B", "C"),
) |>
  gt(
    rowname_col = "Variable",
    row_group_as_column = TRUE
  ) |> 
  # remove full_name column
  tab_row_group(
    label = "Group",
    rows = 1:2
  )
tmp |> as_latex() 
#> Error in  if (any(colwidth_df$unspec < 1L)) { : 
#>  missing value where TRUE / FALSE is required.

The error would disappear if unspec was added here, but it produces incorrect output. (The code errors with html output)

gt/R/utils_render_latex.R

Line 1723 in 1a3b8aa

stub_row_group <- data.frame(type = "stub_row_group", lw = 0, pt = 0)

Example from #1557

[olivroy]

Closing for now. This issue doesn't add much