library(devtools)
load_all()
data(World,metro,land)

World$`Unusual column name` = World$HPI

# Test in v4:
tm_shape(World) +
	tm_polygons("Unusual column name")
# Error: Visual values used for the variable, "fill" of layer function "tm_polygons" are incorrect.

# Test in v3:
remotes::install_version("tmap", version = "3.3")
detach("package:tmap", unload = TRUE)
library(tmap)

World$`Unusual column name` = World$HPI
tm_shape(World) +
	tm_polygons("Unusual column name")