"Reaction popup" disappears right away

Steps to reproduce

  1. Open existing issue.
  2. Click on "Add reaction" button.

What is the current bug behavior?

Popup will be shown for less than 1 second, and it disappears immediately after it.

What is the expected correct behavior?

Popup should be visible untill some emoji is selected.

Relevant logs and/or screenshots

Kazam_screencast_00000

Output of checks

This bug happens on GitLab.com

Enviroment

Google Chrome Version 73.0.3683.86 (Official Build) (64-bit) Linux Mint

Edited by Oleksandr