DEFECT subscription flow when cancelled just right after purchase

STEPS TO REPRODUCE:
1. compile TrivialDrive from SDK manager
2. register the TrivialDrive into Developer Console and wait
3. register subs item into the console and purcase it by pressing 'infinite gas'
4. and get it done purchase flow and and immediately go to Google Play > my app 
> in-app > cancel the purcahsement.
5. and go back and check whether 'infinite gas' work or not on the sample app.
6. repeat 1~5 one or two time continuesly.

EXPECTED OUTPUT:
If once subscription cancelled,the infinite gas must not be work. 

ACTUAL OUTPUT:
many of time just repeat 1~5 one or two times fast, 
the subscription item still being owned. (not expired)

AFFECTED ORDER IDS (IF RELEVANT):

OS VERSION:
All.

MARKET/MYAPPS VERSION:
All.

DEVICE:
All.

OUTPUT FROM ADB BUGREPORT ATTACHED:
(Note: The output from "adb bugreport" is required for all bug reports.)

NOTES:
Fix that ASAP

Original issue reported on code.google.com by newandro...@gmail.com on 14 Jan 2014 at 6:53

skbhati199 / marketbilling

DEFECT subscription flow when cancelled just right after purchase #170