Rest API Plugin return inconsistent json

Hi,

I've encountered that the Rest api plugin returns inconsistent json and it is causing my .net json serializer throws exceptions. For example:

http://localhost:1234/httpAuth/app/rest/changes?build=id:3

it returns

{"@count":"2", "change":[
     {"@webLink":"http://localhost:1234/viewModification.html?modId=3&personal=false","@version":"792599340d1f243a78e4e95e2dd2f5667bfe95fc","@id":"3","@href":"/httpAuth/app/rest/changes/id:3"},
     {"@webLink":"http://localhost:1234/viewModification.html?modId=2&personal=false","@version":"ae613ee6a7396c08b7696933479abaaf3ff64c81","@id":"2","@href":"/httpAuth/app/rest/changes/id:2"}
]}

but if I request http://localhost:1234/httpAuth/app/rest/changes?build=id:4

{"@count":"1","change":{"@webLink":"http://localhost:1234/viewModification.html?modId=4&personal=false","@version":"3c6e592c94112477b9858b9518c0d1c4a2b53550","@id":"4","@href":"/httpAuth/app/rest/changes/id:4"}}

The first response in the "change" part is an array of objects, but the second response is an object. Should they both are returning array? Although, if I change to get xml instead of json, the xml response is all good.

Cheers,
Ld