Steps:
1. Log-in as admin in JIRA.
2. In the administration tab, Select any project having custom avatar associated with it.
3. Click "Edit Project" and click on the avatar to open the dialog.
4. Click the cross button on custom avatar to delete it.
5. User gets the warning message, click "Cancel"

Result:
1. The user is redirected to http://<Server ID>/secure/popups/AvatarPicker!default.jspa?pid=10070&close=true.
2. Clicking back button to go back, the custom avatar is deleted and default avatar is set for project.

Expected:
1. The focus should be back on avatar dialog and no deletion of custom avatar should happen.