Resolve unshelve issue from edge server.

@mjoubert noticed the issue and that removing the path side steps the
problem.  Looks like a separate issue for P4JAVA.

SCM Task: unshelve review: 12345
... sync c:\jenkins\workspace\proj/...
... unshelve -f -s 12345 c:\jenkins\workspace\proj/...
P4JAVA: Path 'c:\jenkins\cryptos\workspace\proj/...' is not under
client's root 'c:\jenkins\workspace\proj'.
ERROR: Unable to update workspace: hudson.AbortException: P4JAVA:
Error(s)