R script showing problem with turf.js buffers at smaller distances

buff_prob.R

#load libraries
library(jsonlite)
library(geojsonio)
library(sp)
library(lawn)
library(rgeos)

#create pt
pt<-minify('{
  "type": "Feature",
  "properties": {},
  "geometry": {
    "type": "Point",
    "coordinates": [0, 0]
  }
 }')

#create lawn.js buffer
lawn_buffer_10<-buffer(pt,10,"meters")
lawn_buffer_50<-buffer(pt,50,"meters")
lawn_buffer_100<-buffer(pt,100,"meters")
lawn_buffer_150<-buffer(pt,150,"meters")
lawn_buffer_250<-buffer(pt,250,"meters")

#convert lawn_buffer_x to json file
toJSON(lawn_buffer_10,auto_unbox = TRUE)%>%
  geojson_write("inst/misc/lawn_buffer_10.geojson")

toJSON(lawn_buffer_50,auto_unbox = TRUE)%>%
  geojson_write("inst/misc/lawn_buffer_50.geojson")

toJSON(lawn_buffer_100,auto_unbox = TRUE)%>%
  geojson_write("inst/misc/lawn_buffer_100.geojson")

toJSON(lawn_buffer_150,auto_unbox = TRUE)%>%
  geojson_write("inst/misc/lawn_buffer_150.geojson")

toJSON(lawn_buffer_250,auto_unbox = TRUE)%>%
  geojson_write("inst/misc/lawn_buffer_250.geojson")

#create sp point
pt_sp<-SpatialPoints(coordinates(list(x=0,y=0)),CRS("+proj=longlat +datum=WGS84"))

#transfrom to web mercator becuase geos needs project coords
pt_sp_3857<-spTransform(pt_sp,CRS("+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext  +no_defs"))

#buffer
rgeos_buffer_100<-gBuffer(pt_sp_3857,width=100)
rgeos_buffer_100<-spTransform(rgeos_buffer_100,CRS("+proj=longlat +datum=WGS84"))

geojson_write(rgeos_buffer_100,"inst/misc/rgeos_buffer_100.geojson")

lawn_buffer_10.geojson

lawn_buffer_100.geojson

{
    "type": "FeatureCollection",
    "features": [
        {
            "type": "Feature",
            "geometry": {
                "type": "Polygon",
                "coordinates": [
                    [
                        [
                            0.0009,
                            0
                        ],
                        [
                            0.0009,
                            -0.0002
                        ],
                        [
                            0.0008,
                            -0.0003
                        ],
                        [
                            0.0007,
                            -0.0005
                        ],
                        [
                            0.0006,
                            -0.0006
                        ],
                        [
                            0.0005,
                            -0.0007
                        ],
                        [
                            0.0003,
                            -0.0008
                        ],
                        [
                            0.0002,
                            -0.0009
                        ],
                        [
                            5.5103e-20,
                            -0.0009
                        ],
                        [
                            -0.0002,
                            -0.0009
                        ],
                        [
                            -0.0003,
                            -0.0008
                        ],
                        [
                            -0.0005,
                            -0.0007
                        ],
                        [
                            -0.0006,
                            -0.0006
                        ],
                        [
                            -0.0007,
                            -0.0005
                        ],
                        [
                            -0.0008,
                            -0.0003
                        ],
                        [
                            -0.0009,
                            -0.0002
                        ],
                        [
                            -0.0009,
                            6.8909e-19
                        ],
                        [
                            -0.0009,
                            0.0002
                        ],
                        [
                            -0.0008,
                            0.0003
                        ],
                        [
                            -0.0007,
                            0.0005
                        ],
                        [
                            -0.0006,
                            0.0006
                        ],
                        [
                            -0.0005,
                            0.0007
                        ],
                        [
                            -0.0003,
                            0.0008
                        ],
                        [
                            -0.0002,
                            0.0009
                        ],
                        [
                            2.2326e-18,
                            0.0009
                        ],
                        [
                            0.0002,
                            0.0009
                        ],
                        [
                            0.0003,
                            0.0008
                        ],
                        [
                            0.0005,
                            0.0007
                        ],
                        [
                            0.0006,
                            0.0006
                        ],
                        [
                            0.0007,
                            0.0005
                        ],
                        [
                            0.0008,
                            0.0003
                        ],
                        [
                            0.0009,
                            0.0002
                        ],
                        [
                            0.0009,
                            0
                        ]
                    ]
                ]
            },
            "properties": {

            }
        }
    ]
}

lawn_buffer_150.geojson

lawn_buffer_250.geojson

lawn_buffer_50.geojson

rgeos_buffer_100.geojson