dird: fix for crash when starting rescheduled jobs

[alaaeddineelamri]

Thank you for contributing to the Bareos Project!

Description

This PR fixes a crash that occurs when starting rescheduled jobs.

Please check

• Short description and the purpose of this PR is present above this paragraph
• Your name is present in the AUTHORS file (optional)

If you have any questions or problems, please give a comment in the PR.

Helpful documentation and best practices

• Git Workflow
• Automatic Sourcecode Formatting
• Check your commit messages

Checklist for the reviewer of the PR (will be processed by the Bareos team)

General

• PR name is meaningful
• Purpose of the PR is understood
• Commit descriptions are understandable and well formatted
• Check backport line
• Is the PR title usable as CHANGELOG entry?
• (will be added by pr-tool) Separate commit for CHANGELOG.md ("update CHANGELOG.md"). The PR number is correct.

Source code quality

• Source code changes are understandable
• Variable and function names are meaningful
• Code comments are correct (logically and spelling)
• Required documentation changes are present and part of the PR
• bareos-check-sources --since-merge does not report any problems

Tests

• Decision taken that a test is required (if not, then remove this paragraph)
• The choice of the type of test (unit test or systemtest) is reasonable
• Testname matches exactly what is being tested
• On a fail, output of the test leads quickly to the origin of the fault

[pstorz]

Great that you found the fix that quick. Could you please add a short description to when the crash happened.(I.e. what crash is fixed).

[sduehr]

This occured with the following config:

  Reschedule On Error = yes
  Reschedule Interval = 30 minutes
  Reschedule Times = 7
  Max Wait Time = 5 minutes

and it occured when the job was started at the rescheduled start time.

So the description should be:
This PR fixes a crash that occurs on starting rescheduled jobs.

[pstorz]

See comment, set -e is missing in testrunner-reschedule

[pstorz]

Good work!