User rename doesn't work using Crowd with incremental synchronization

Summary

The user rename functionality doesn't work when JIRA is authenticating on Crowd with incremental synchronization, connected to an external directory.

Environment

• JIRA 6.4.11
• Crowd 2.8.3
• Win2k8 R2 Active Directory

Steps to Reproduce

1. Create the user jsmith on AD.
2. Connect Crowd 2.8.3 to AD (connector).
3. Connect JIRA to Crowd with incremental synchronization enabled.
4. Perform a full synchronization on Crowd and then JIRA - The user jsmith will be visible on JIRA.
5. Rename the user on AD (e.g. to john.smith).
6. Synchronize the directory on Crowd - The username will change to john.smith.
7. Synchronize the Crowd directory on JIRA.

Expected Results

The username should be updated to john.smith.

Actual Results

The username will not be updated.

Workaround

There are two workarounds for this issue:

1. Ask the user to try to log into JIRA with the john.smith username. The login will synchronize the user with Crowd.
2. Perform a full synchronization between JIRA and Crowd.