Different behaviour of undesirable linters with empty character vectors

[IndrajeetPatil]

I'd have expected both of these arguments to have similar behaviour. Is this expected?

library(lintr)

invisible(undesirable_function_linter(fun = character(0L)))

undesirable_operator_linter(op = character(0L))
#> Error in undesirable_operator_linter(op = character(0L)): 'op' should be a named character vector; use missing elements to indicate default messages.

^{Created on 2022-12-20 with reprex v2.0.2}

[AshesITR]

Agree. Both of them should error because there should be no need to create a no-op linter.