File operation jobs such as JobSchedulerExistsFile should work even if a filename contains square brackets

Current Situation

We assume a filename contains left and right square brackets (e.g. foobar[1].txt).
If this file is processed by a "file operation JITL job" such as JobSchedulerExistsFile then the following error is raised:

unsupported file mask found: [1] 

Desired Behavior

Files with left and right square brackets in its name should be processed by all "file operation JITL jobs" without above error.