[R-sig-Geo] st_simplify outputs the input geometry with no simplification

[Hugo Costa]

Dear list,

function st_simplify outputs exactly the same geometry as the input. This
is an example:

library(sf)

nc = st_read(system.file("shape/nc.shp", package="sf"))
nc <- nc %>% st_transform(3857)
plot(st_geometry(nc))

nc_simplfy<-st_simplify(nc)
plot(st_geometry(nc_simplfy))

However, I'm quite sure some days ago st_simpliffy was working as expected.
Could it be something wrong in my machine? What am I missing?

> sessionInfo()
R version 3.5.3 (2019-03-11)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=Portuguese_Portugal.1252  LC_CTYPE=Portuguese_Portugal.1252
   LC_MONETARY=Portuguese_Portugal.1252 LC_NUMERIC=C
[5] LC_TIME=Portuguese_Portugal.1252

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

other attached packages:
[1] sf_0.7-3

loaded via a namespace (and not attached):
 [1] compiler_3.5.3 magrittr_1.5   class_7.3-15   DBI_1.0.0
 tools_3.5.3    units_0.6-2    Rcpp_1.0.1     grid_3.5.3     e1071_1.7-0.1
[10] classInt_0.3-1

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