p4 plugin aborting when running on multiple plugin

[niraj nandane]

Hi,

I have shelved changelist and i want to unshelve it before starting build. For this i am using p4 plugin with "review" and "status" variable.I have selected run concurrent build option in jenkins job configuration. When i start build it create workspace in "

root/.jenkins/jobs/sync_build_example/workspace" ,and when i start again its parallel build,
it creates workspace in "root/.jenkins/jobs/sync_build_example/workspace@2" . The first 
workspace unshelve provided changelist correctly while second run of same job gets aborted. 
How to support multiple workspace with unshelving facility using p4 plugin ?

Any help would be greatly appreciated ?

Thanks a ton in advance.