After upgrading to 4.0.3, CamelCased group names stop being recognized

Scenario to reproduce the problem:

Original setup:

• Any FishEye/Crucible version prior to 4.0.x, such as 3.10.3
• The database type does not matter, as soon as it's configured with the correct encoding. For the record, this problem was reproduced in PostgreSQL and MySQL.
• CamelCased group name being used, and user logged in is specified as member of the group.
• Only this group is granted 'Create' permission in the permission scheme, and the blue 'Create Review' at the top of the screen is shown.

After upgrading to 4.0.3:

• Blue 'Create Review' button disappears.
• If JIRA is integrated with Crucible, reviews cannot be created from JIRA issues.

Workaround:
Create lowercased group names, associate the same set of users from the CamelCased groups into the lowercased groups, and grant 'Create' permission only to these groups in the permission scheme. Blue 'Create Review' button should show up, and users should be able to create reviews from JIRA again.