Bug s3_dispatch() for cbind()

[bendeivide]

The generic should dispatch in cbind.default, why didn't it happen? The output in s3_dispatch() is correct, as I would expect. But that didn't happen when I use the generic. See the code below.

Code:
cbind.default <- function(x, ...) "Test!"
x <- 1:10
sloop::s3_dispatch(cbind(structure(x, class = "numeric")))
cbind(structure(x, class = "numeric"))

Example (Output):

cbind.default <- function(x, ...) "Test!"
x <- 1:10
sloop::s3_dispatch(cbind(structure(x, class = "numeric")))
cbind.numeric
=> cbind.default

• cbind (internal)

cbind(structure(x, class = "numeric"))
[,1]
[1,] 1
[2,] 2
[3,] 3
[4,] 4
[5,] 5
[6,] 6
[7,] 7
[8,] 8
[9,] 9
[10,] 10

[hadley]

cbind.default <- function(x, ...) "Test!"
x <- 1:3
sloop::s3_dispatch(cbind(structure(x, class = "numeric")))
#>    cbind.numeric
#> => cbind.default
#>  * cbind (internal)
cbind(structure(x, class = "numeric"))
#>      [,1]
#> [1,]    1
#> [2,]    2
#> [3,]    3

^{Created on 2023-10-30 with reprex v2.0.2}

Presumably because cbind() is an internal generic.