psu should be integer #4635

like his father (8e1b241968114edb26160007cb42e6caeea8ba76)
and his father's father (48da6e252ad85da2d0dd093a34c3cc641eb85d3c)
Merge pull request #293 from NUBIC/bug_4635_provider_edit_pre_screen_performed

Bug 4635 provider edit pre screen performed