###

### Steps to reproduce

1. Login Begin of the insertionand open [https://qa.openproject-stage.com/projects/okt-23](https://qa.openproject-stage.com/projects/okt-23). Alternatively, haveEnd of the insertion Begin of the deletion asEnd of the deletion a Begin of the insertionprojectEnd of the insertion Begin of the deletion userEnd of the deletion with Begin of the insertionaEnd of the insertion Begin of the deletion permissions to addEnd of the deletion work Begin of the insertionpackage type that has Work field as the last one on the formEnd of the insertion Begin of the deletion estimateEnd of the deletion

2. Begin of the insertionWhile onEnd of the insertion Begin of the deletion Reduce your screen untilEnd of the deletion the Begin of the insertionwork packages page, click on +Create and select "New" as work package type (or any type that meets the criterion explained at the step 1)End of the insertion Begin of the deletion left navigation panel is hiddenEnd of the deletion

3. Begin of the insertionClick on Full screenEnd of the insertion Begin of the deletion Go to a Work Package edition formEnd of the deletion

4. Begin of the insertion Decrease the size of the window as seen on the video attached

5.End of the insertion Click on the "Work" field


### What is the buggy behavior?

* The modal appears and then disappears


### What is the expected behavior?

1. The modal should be displayed

2. The user should be able to edit the fields in the modal


###

### Screenshots and other files

See file attached. 

### Environment information

**OpenProject installation type**

* Hosted cloud edition: reproduced on this WP on community.openproject.org


**OpenProject version**

_If you're not running on the cloud edition, please specify the version of OpenProject you're running. Example: v12.1.5_

**Browser**

* [ ] Chrome
* [x] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [ ] Other (please specify)

**Operating System**

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

**Language**

_French_