Region query lost with fipio migration

[mikejohnson51]

example:

AOI::aoi_get(state = "south", county = "all")
#> Error: State, county pair(s) not found

^{Created on 2022-04-11 by the reprex package (v2.0.1)}

[mikejohnson51]

@program-- the issue here is that a "bad" state now returns an empty data.frame rather then NULL as before. Easy to fix in AOI but is this what you want/expect?

fip_meta(state = "south")
#> Simple feature collection with 1 feature and 14 fields (with 1 geometry empty)
#> Geometry type: GEOMETRY
#> Dimension:     XY
#> Bounding box:  xmin: NA ymin: NA xmax: NA ymax: NA
#> Geodetic CRS:  WGS 84
#>   state_region state_division feature_code state_name state_abbr name fip_class tiger_class
#> 1           NA             NA         <NA>       <NA>       <NA> <NA>      <NA>        <NA>
#>   combined_area_code metropolitan_area_code functional_status land_area water_area fip_code
#> 1                 NA                   <NA>              <NA>        NA         NA     <NA>
#>                   geometry
#> 1 GEOMETRYCOLLECTION EMPTY

[program--]

This is intended behavior, as it ensures vectorized calls are the same length as the parameters 😄