f2dfdd4ab3
If a normal user created a fixed_ip/floating_ip, a usage record with column `in_use=1` will be created in the quota_usages table, and if an admin user deleted the resource, a new record with column `in_use=-1` will be created..This will cause the quota for the resources not released. Fixes bug 1220727 Change-Id: I705f2f9ef327a3198da6a47df772c3a1a28e1b4e