parallelMap with Batchtools backend fails when logging is enabled.

[mb706]

parallelStartBatchtools(logging = TRUE, storagedir = "paralleltmp", show.info = TRUE)
pmresult = parallelMap(function(x)  list(result = x * x + 1, info = Sys.getenv()), 1:10, show.info = TRUE)

gives error

Mapping in parallel: mode = batchtools; level = NA; cpus = NA; elements = 10.
Error in `$<-.data.frame`(x, name, value) : 
  replacement has 0 rows, data has 10

This is I believ an error here:

parallelMap/R/parallelMap.R

Line 206 in 5cb3429

x$log.file = file.path(reg$file.dir, "logs", sprintf("%s.log", x$job.hash))

where x does not have the entry job.hash. Maybe the API changed between Batchtools and BatchJobs and this was copied and never tested?