As we encourage people to split a big task into a series of small works, we need a first class citizen support to allow one job to use the same workspace as another.

• Job X calls job Y, and job Y wants to see the same workspace as X.
• A series of jobs triggered in a sequence like a pipeline, and they all want to use the same workspace.

Today, this rqeuires setting a parameter and pass a custom workspace. Another plugin is needed to make sure both runs on the same node.

If this is exposed from core, plugins like buildflow would hopefully benefit by providing DSL around it.