Backup Script or Opus issue?

When using this script i get a new backups in source and ghost files in dest. neither refresh nor changing the folder makes it disappear, only Dopus' exit, and i don't know is there an Opus' issue or a script's (of course, there was no such problem in v12)

script

Confirmed.

Simplified repro:

// Run wth a file selected, and another folder in the second file display.
function OnClick(clickData) {
	clickData.func.command.RunCommand("Copy PATTERN * AS *.bak HERE");
}

(Only happens if the command is run via a script.)

Should be fixed in the next beta.