Description of problem:

If hosts are not configured correctly for pull-transport, the script provider jobs run against these hosts end up hanging indefinitely in pending state.

Version-Release number of selected component (if applicable):
6.12

How reproducible:
Always

Steps to Reproduce:

1. Have a satellite with a pull provider enabled capsule
2. Register a host, but don't enable mqtt client (or simply run a job against satellite itself)
3. Run a script job against the host

Actual results:
The job hangs.

Expected results:
The job should fail with a meaningful error message