R devel - May 2018 - BUG in .col( c(1, 1) ) ?

I would have expected coercion to an integer vector or at least a complaint that
the user did not provide a valid matrix dimension.
> .col(c(1,1))
Error in .col(c(1, 1)) : 
  a matrix-like object is required as argument to
'col'
> .col(c(1L,1L))
     [,1]
[1,]    1
> sessionInfo()
R version 3.5.0 (2018-04-23)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS High Sierra 10.13.4

Matrix products: default
BLAS:
/Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRblas.0.dylib
LAPACK:
/Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] compiler_3.5.0
> 
HTH,

Chuck

p.s. Thanks for adding .col()