Issue with vec_order_radix() and matrix columns

[DavisVaughan]

library(vctrs)

df <- data_frame(
  x = matrix(c(1, 1, 1, 3, 2, 2), ncol = 2),
  y = 3:1
)

vctrs:::vec_order_radix(df, direction = c("asc", "asc"))
#> Error: Internal error: `vec_order_expand_args()` should expand `decreasing` to have length 1 or length equal to the number of columns of `x` after calling `vec_proxy_order()`.

Showed up in dplyr revdep analysis of GauPro