Cron Jobs % escaping behaviour broken

Something strange is going on with Cron Jobs escaping. I had a job that was working fine in 11.2, but since upgrading to 11.3 it is causing problems. I have tracked this down to part of the command that does `date "+%Y%m%d%H%M"`.db .

In 11.2, this would give output of the form "202002150100.db". In 11.3 it produces "\2020\02\22\01\00.db".