[R] Error with get_all_vars()

[ronggui]

> get_all_vars(dist ~ speed, data = cars)
Error in `row.names<-.data.frame`(`*tmp*`, value = c(NA, -50L)) :
        invalid 'row.names' length

> version
               _
platform       i386-pc-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status         Under development (unstable)
major          2
minor          5.0
year           2007
month          03
day            13
svn rev        40832
language       R
version.string R version 2.5.0 Under development (unstable) (2007-03-13 r40832)


-- 
Ronggui Huang
Department of Sociology
Fudan University, Shanghai, China