The provisioning GUI in the webapp presents the wrong services to add to an interface when creating requisitions

When creating a new requisition under Admin/Manage Provisioning Requisitions, then the services pulldown on the interface components displays the wrong list of services.

The list currently only displays the services defined in the same provisioning requisitions foregin source's list of defined services. This pulldown should display the larger list of services defined globally, or it would not be possible to add a specific service to a specific node, without the general scanning at import time trying to add it to all nodes in the requisition.

Adding the service specifically by editing the XML works fine.