Can not set bug's assignee in webservice api script
I have a script with bugzilla webservice api to create a new bug,
and when I give the parameter of bug creation with assigned_to setting
I find the new bug created with not the assignee name I put in script,
but the component default owner.
I set the new bug assignee with [hidden email], and the default of
the component of new bug is [hidden email],
after the bug created, the assignee is [hidden email], not [hidden email] which is specified in the script.
Is it possible to set the new bug's assignee in api?