spacemanager: Fix authorization bug in space reservation for non-srm transfers

Target: trunk
Request: 2.6
Request: 2.2
Acked-by: Dmitry Litvintsev <litvinse@fnal.gov>
Patch: http://rb.dcache.org/dashboard/
(cherry picked from commit cce04b2f52fda78e6385230cc844c88241d3fa2c)
Merge pull request #226 from gbehrmann/fix/2.2/rb6099

spacemanager: Fix authorization bug in space reservation for non-srm tra...