elevatr::get_elev_raster(..., clip = 'bbox') is broken #104

elevatr::get_elev_raster(
  locations = data.frame(
    x = c(-180, 180),
    y = c(-90, 90)),
  z = 1,
  prj = "+proj=longlat +datum=WGS84 +no_defs",
  clip = "bbox")
#> Mosaicing & Projecting
#> Clipping DEM to bbox
#> Error : IllegalArgumentException: Invalid number of points in LinearRing found 2 - must be 0 or >= 3
#> Error: [as,sf] coercion failed. You can try coercing via a Spatial* (sp) class

sessionInfo()
#> R version 4.5.2 (2025-10-31)
#> Platform: x86_64-redhat-linux-gnu
#> Running under: Fedora Linux 43 (KDE Plasma Desktop Edition)
#> 
#> Matrix products: default
#> BLAS/LAPACK: FlexiBLAS OPENBLAS-OPENMP;  LAPACK version 3.12.1
#> 
#> locale:
#>  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
#>  [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
#>  [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
#>  [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                 
#>  [9] LC_ADDRESS=C               LC_TELEPHONE=C            
#> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       
#> 
#> time zone: Europe/Berlin
#> tzcode source: system (glibc)
#> 
#> attached base packages:
#> [1] stats     graphics  grDevices utils     datasets  methods   base     
#> 
#> loaded via a namespace (and not attached):
#>  [1] terra_1.8-86       crayon_1.5.3       vctrs_0.6.5        httr_1.4.7        
#>  [5] cli_3.6.5          knitr_1.50         progressr_0.18.0   rlang_1.1.7       
#>  [9] xfun_0.55          DBI_1.2.3          KernSmooth_2.23-26 purrr_1.2.0       
#> [13] sf_1.0-23          glue_1.8.0         prettyunits_1.2.0  htmltools_0.5.9   
#> [17] e1071_1.7-16       hms_1.1.4          rmarkdown_2.30     grid_4.5.2        
#> [21] elevatr_0.99.1     evaluate_1.0.5     classInt_0.4-11    fastmap_1.2.0     
#> [25] progress_1.2.3     yaml_2.3.12        lifecycle_1.0.5    compiler_4.5.2    
#> [29] codetools_0.2-20   fs_1.6.6           pkgconfig_2.0.3    slippymath_0.3.1  
#> [33] Rcpp_1.1.0         rstudioapi_0.17.1  digest_0.6.39      R6_2.6.1          
#> [37] class_7.3-23       reprex_2.1.1       curl_7.0.0         magrittr_2.0.4    
#> [41] tools_4.5.2        withr_3.0.2        proxy_0.4-28       units_1.0-0