JITL Jobs should substitute \${a_param} with order parameter a_param even when job have parameter a

Current Situation

• job has a parameter x with the value \${a_param}
• job has a parameter a with the value value_of_a
• the job is part of the job chain
• an order is running which have the paramter a_param=test

Then the parameter x has the the value

• ${a_param} with JobScheduler 1.9.0
• value_of_a_param} with JobScheduler 1.10

Desired Behaviour

The parameter x should have the value test