Users with role "Service desk customers" cannot browse any Jira project

Our Jira instance contains many public project (browse rights are provided to anyone) and Service Desk. As soon as our customer is logged into Service Desk, he is always redirected to customer portal. He has to log off to be able to browse public project.

It was not the case in 2.1.

To reproduce:

• create a service desk customer
• create a Jira project, create at least one issue and provide browse rights to 'Anyone'
• log into Service Desk using customer account
• try to browse Jira project issues