###

### Steps to reproduce

1. Login as a user with permissions to see (but not edit) a wp

2. Try updating the wp description: enter something and save


### What is the buggy behavior?

* There is an error: Error updating work package


### What is the expected behavior?

1. User should Begin of the insertionnotEnd of the insertion be able to edit the content at all


###

### Environment information

**OpenProject version**

0.2.3 (926)

**Operating System**

* [ ] Windows
* [ ] Mac OS X
* [ ] Mobile iOS
* [x] Mobile Android
* [ ] Linux (please specify distro)
* [ ] Chrome OS
* [ ] Other (please specify)