AfterSave book is called 2 times

[mcanals]

This is the log:

I2013-09-26T16:23:55.071Z] v102: before_save triggered for Book for user ZPAJrDBZew Input: {"original":null,"update":{"title":"Las calles de Barcelona","registrationId":"ZJP8","image":"http://bks8.books.google.es/books?id=aOJWAAAAMAAJ&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api","authors":["Victor Balaguer"],"isbn":"UOM:39015034804669","hunted":0,"released":0,"kilometers":0,"averageRate":0,"registeredBy":{"type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"bookStatus":{"type":"Pointer","className":"BookStatus","objectId":"wXbJK5Sljm"},"ownedBy":{"type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"}}} Result: Update changed to {"title":"Las calles de Barcelona","registrationId":"ZJP8","image":"http://bks8.books.google.es/books?id=aOJWAAAAMAAJ&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api","authors":["Victor Balaguer"],"isbn":"UOM:39015034804669","hunted":0,"released":0,"kilometers":0,"averageRate":0,"registeredBy":{"__type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"bookStatus":{"type":"Pointer","className":"BookStatus","objectId":"wXbJK5Sljm"},"ownedBy":{"type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"registered":{"op":"Increment","amount":1}} I2013-09-26T16:23:55.124Z] v102: after_save triggered for Book for user ZPAJrDBZew Input: {"title":"Las calles de Barcelona","registrationId":"ZJP8","image":"http://bks8.books.google.es/books?id=aOJWAAAAMAAJ&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api","authors":["Victor Balaguer"],"isbn":"UOM:39015034804669","hunted":0,"released":0,"kilometers":0,"averageRate":0,"registeredBy":{"type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"bookStatus":{"type":"Pointer","className":"BookStatus","objectId":"wXbJK5Sljm"},"ownedBy":{"type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"createdAt":"2013-09-26T16:23:55.108Z","updatedAt":"2013-09-26T16:23:55.108Z","objectId":"mWELoxJPN7"} Result: Success I2013-09-26T16:23:55.148Z] Retreiving objects... I2013-09-26T16:23:55.150Z] Sending email for registration book Las calles de Barcelona with code ZJP8 to user Marc hotmail with email dirkom@hotmail.com I2013-09-26T16:23:55.488Z] registers of the user incremented I2013-09-26T16:23:55.589Z] Email sent successfully [object Object] I2013-09-26T16:23:56.033Z] v102: before_save triggered for Book for user ZPAJrDBZew Input: {"original":{"authors":["Victor Balaguer"],"averageRate":0,"bookStatus":{"type":"Pointer","className":"BookStatus","objectId":"wXbJK5Sljm"},"hunted":0,"image":"http://bks8.books.google.es/books?id=aOJWAAAAMAAJ&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api","isbn":"UOM:39015034804669","kilometers":0,"ownedBy":{"__type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"registered":1,"registeredBy":{"__type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"registrationId":"ZJP8","released":0,"title":"Las calles de Barcelona","createdAt":"2013-09-26T16:23:55.108Z","updatedAt":"2013-09-26T16:23:55.108Z","objectId":"mWELoxJPN7"},"update":{}} Result: Update changed to {"registered":{"op":"Increment","amount":1}} I2013-09-26T16:23:56.070Z] v102: after_save triggered for Book for user ZPAJrDBZew Input: {"title":"Las calles de Barcelona","registrationId":"ZJP8","image":"http://bks8.books.google.es/books?id=aOJWAAAAMAAJ&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api","authors":["Victor Balaguer"],"isbn":"UOM:39015034804669","hunted":0,"released":0,"kilometers":0,"averageRate":0,"registeredBy":{"type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"bookStatus":{"type":"Pointer","className":"BookStatus","objectId":"wXbJK5Sljm"},"ownedBy":{"type":"Pointer","className":"_User","objectId":"ZPAJrDBZew"},"registered":2,"createdAt":"2013-09-26T16:23:55.108Z","updatedAt":"2013-09-26T16:23:55.972Z","objectId":"mWELoxJPN7"} Result: Success I2013-09-26T16:23:56.084Z] Retreiving objects... I2013-09-26T16:23:56.086Z] Sending email for registration book Las calles de Barcelona with code ZJP8 to user Marc hotmail with email dirkom@hotmail.com I2013-09-26T16:23:56.391Z] Email sent successfully [object Object] I2013-09-26T16:23:56.393Z] registers of the user incremented