refs #114. Solved problem when linking a cloned workspace to a given user. The error occured when linking an igadget with no variables.
refs #114. Solved problem when linking a cloned workspace to a given user. The error occured when linking an igadget with no variables.

--HG--
extra : convert_revision : svn%3A2a98c5bb-d66c-48ca-a96c-db028a6c31f4/ezweb_platform/src/trunk%401560

jpajuelo/wirecloud,jpajuelo/wirecloud,rockneurotiko/wirecloud,rockneurotiko/wirecloud,jpajuelo/wirecloud,jpajuelo/wirecloud,rockneurotiko/wirecloud,rockneurotiko/wirecloud