### Begin of the deletion

###End of the deletion Steps to reproduce

1. Login and open a work package

2. Tap on the description field to edit it

3. Add some checkboxes (to do list) and save


### What is the buggy behavior?

* Checkboxes are saved as radio buttons Begin of the insertionor bullet points when you open the description againEnd of the insertion


### What is the expected behavior?

1. Checkboxes should be properly displayed


### Environment information

**OpenProject version**

_1.4.0_

**Operating System**

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