Issue 3683: Duplicated Change-Id exists in one branch illegally
Status:  New
Owner: ----
Reported by Velly.zhou, Nov 17, 2015
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***** !!!! THIS BUG TRACKER IS FOR GERRIT CODE REVIEW !!!!  *****
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***** DO NOT SUBMIT BUGS FOR CHROME, ANDROID, CYANOGENMOD,  *****
***** INTERNAL ISSUES WITH YOUR COMPANY'S GERRIT SETUP, ETC.*****
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*****   THOSE ISSUES BELONG IN DIFFERENT ISSUE TRACKERS     *****
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Affected Version: V2.11

Problem:

Duplicated Change-Id exists in one branch illegally !!!!

What steps will reproduce the problem?
1. git push origin HEAD:refs/changes/your_branch


What is the expected output? 
refs/changes should be protected. User should not push to refs/changes/directly.

What do you see instead?
The unique Change-Id in a specific branch corrupted.