box::export() at namespace scope overrides export attribute declarations

[klmr]

Error description

MWE

mwe.r

#' @export
test1 = 1

test2 = 2

box::export(test2)

box::use(./mwe)
ls(mwe)

Expected result

[1] "test1" "test2"

Actual result

[1] "test2"

Additional details

Calling box::export() in .on_load() works as expected; i.e. when changing mwe.r to the following, we get the expected result:

#' @export
test1 = 1

test2 = 2

.on_load = function (ns) {
  box::export(test2)
}

R version

_                           
platform       aarch64-apple-darwin20      
arch           aarch64                     
os             darwin20                    
system         aarch64, darwin20           
status                                     
major          4                           
minor          3.1                         
year           2023                        
month          06                          
day            16                          
svn rev        84548                       
language       R                           
version.string R version 4.3.1 (2023-06-16)
nickname       Beagle Scouts

‘box’ version

1.1.3