The pipeline editor breaks when scripts or sub-pipelines are renamed or deleted, and when inputs change

[glaroc]

When deleting a script or pipeline that is part of a pipeline, opening that pipeline in the editor will lead to a broken pipeline json file that has orphan edges. This leads to javascript errors and a high cpu usage. The only solution at the moment is to manually edit the json file to remove the orphan edges, or to redo the pipeline from scratch in the editor.

[jmlord]

Suggestion:

• gray box with the previous name of the step
• add any input / output to be able to connect the dangling edges
• instruction on the step to drag and drop the new version on it
  • auto-connects the matching parameters

or just instruction to replug in the new step?