Restriction on multi-step jobs with SCI

Running a subsequent step in a job that registers with SCI is not supported when a prior jobstep created a space-switching PC.

IMS product address spaces that create space-switching PCs include the IMS control region, DLI/SAS region, SCI, and CQS. For example, if ARLN (enabled by using the SCI registration exit routine) is enabled in a IMS region, any batch job/PROC with a jobstep executing a IMS control region (or DLI/SAS region or SCI or CQS) cannot have a subsequent jobstep that executes DBRC.

That DBRC jobstep must be moved to another Job. This is because of the first jobstep creating space switching PCs, which does not allow the DBRC jobstep to successfully register with SCI.