loadRegistry assigns exported objects into the global namespace #304

library(batchtools)
path = tempfile()
reg = makeExperimentRegistry(path)
#> No readable configuration file found
#> Created registry in '/var/folders/ft/n79895td0xn0gpr6ny8jyh800000gn/T/RtmpAFvW7R/file8eef2b73136b' using cluster functions 'Interactive'

batchExport(list(a = 123))
#> Exporting new objects: 'a' ...


a = 345

loadRegistry(path)
#> Reading registry in read-only mode.You can inspect results and errors, but cannot add, remove, submit or alter jobs in any way.If you need write-access, re-load the registry with `loadRegistry([...], writeable = TRUE)`.
#> No readable configuration file found
#> Experiment Registry
#>   Backend   : Interactive
#>   File dir  : /var/folders/ft/n79895td0xn0gpr6ny8jyh800000gn/T/RtmpAFvW7R/file8eef2b73136b
#>   Work dir  : /private/var/folders/ft/n79895td0xn0gpr6ny8jyh800000gn/T/RtmpJ9OtV1/reprex-8e786d06a68d-frail-tick
#>   Jobs      : 0
#>   Problems  : 0
#>   Algorithms: 0
#>   Seed      : 3916
#>   Writeable : FALSE

a
#> [1] 123