Accessing other user profile changes current user profile avatar in Jira navigation panel

Issue Summary

As logged in user I have my avatar displayed on Jira top navigation panel (right hand corner). When Gravatar is enabled (by default) it changes to the avatar of another user when you view his/her user profile in Jira.

Steps to Reproduce

1. Check that Allow Gravatars is set to ON (see Configuring JIRA application options)
2. Click on a user mention to visit their profile in Jira
3. Look at the avatar displayed on the Jira blue navigation panel (top right hand corner). 

Expected Results

Jira should display current user avatar.

Actual Results

Instead of displaying current use avatar, Jira displays the avatar of the user whose profile you visit.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available