Job Editor should not display a dialogue while entering the name for a new job and an existing job chain already has a job with a similar name

To Reproduce:
-Create OrderJob "MyJob"
-Create Job Chain "MyChain" with "MyJob" as a job_chain_node.
-Save configuration
-Create OrderJob "MyJob2"

--> While typing "MyJob2" (after the "b" and before the "2"), Job Editor displays
"The Job MyJob is currently being used by a job chain. Do you want really rename the name?"

This dialogue should not be displayed while entering the name for a new job (because this is not a rename operation of the original job).

If the dialogue needs to be displayed (in case of a real rename operation) it should read:
"The Job MyJob is currently being used by a job chain. Do you really want to rename the job?"