"Create Decision" button does not work in Confluence Cluster version.

When you click in the "Create a Decision" button in the Decision Register page in a Clustered Confluence the button simply does not work, if you click a second time you get redirected to the dashboard.

Steps to reproduce:

1. Install a Clustered Confluence.
2. Create a space and then create a Decision.
3. Once the decision is created click on "Decision Register".
4. Click only one time in the "Create Decision" button.
5. Nothing will happen.
6. If you Click a second time you will get redirected to the Confluence Dashboard.