Changing the Agent assignment of a job should consider updating the list of encryption certificates

Current Situation

When editing jobs in a workflow, an agent is assigned to the job in the Configuration view. Certificates for encryption are assigned to this agent.
The values in the list of environment variables for this job can be encrypted. A button is provided which lists all the certificates assigned to the agent currently assigned to the job.
If the assignment of the agent to the job is changed, this list will not be updated. Instead of the certificates of the newly assigned agent, the certificates of the previous agent are displayed.

Desired Behaviour

The list of certificate aliases should always display the certificates that are assigned to the current agent, as otherwise a certificate could be used for encryption that is not available to the respective agent.