Workflow becomes invalid after correcting wrong quoting in argument values of JITL Jobs

There is an issue when using the dollar symbol ($) in the file_spec regex for JITL jobs.

Description :

When a user creates a JITL job with the class name com.sos.jitl.jobs.file.CopyFileJob and provides the following argument:

• Name: file_spec
• Value: '.*\.txt$'

the workflow is valid.

However, if the user accidentally changes the value to an incorrect format (missing the closing quote), for example:

'.*\.txt$

the workflow becomes invalid.

After correcting the value back to the valid input:

'.*\.txt$'

the workflow still remains invalid.

It appears that the input is internally transformed into an incorrectly escaped string such as:

"\"\\\\\\\\.*\\\\.txt$'\""

Please refer to attached images and attached JSON file