Before this commit, JobParametersBuilder#getNextJobParameters was checking
for restartability conditions. This is not only already done by the
JobLauncher, but also makes it inconsistent with the behaviour of
CommandLineJobRunner when used with "-next" option and
JobOperator#startNextInstance, which is starting the next instance in
sequence based on the incrementer without dealing with restartability.
This commit fixes the JobParametersBuilder#getNextJobParameters to behave
like the CommandLineJobRunner and JobOperator in regards to starting
the next instance.
Resolves BATCH-2711
ebf156d529