Allow defining the Job level on @JobScope when we are using parent and child jobs (JobStepBuilder)

[nightswimmings]

When using an architecture of jobs and subjobs, we miss a way to specify the level of @JobScope on certain @beans.
For instance, if we have a parent job that executes jobA, jobB and jobC, a @bean marked with @JobScope will be instantiated 3 times (scope set to bottom-level of job), but I want it to be shared among the three subjobs.

If I define the @bean without batch scopes, therefore a singleton, when joblaunching parent job multiple times, my @bean is shared among all parent job executions