**Preconditions**

- Work package module activated.
- Work package list is grouped by an attribute.

**Steps to reproduce**

1. Try to ungroup work package list (open **Group by…** from dropdown and try to select empty option).

**Actual behavior**

- Not possible to select empty option -\> impossible to revert grouping.

**Expected behavior**

- Empty option is displayed as first option in dropdown grouping menu.

**Screenshot**

**QA system**

- Chrome 43.0.2357.124 m
- community.openproject.org
- OpenProject 4.1.3 Begin of the insertion
End of the insertion