Quick edit buttons don't show after being used once
The quick edit button next to the headers on the wiki don't show up after you used them once. You need to reload the page for them to appear again.
OS: Debian Buster
Browser: Firefox 52.3.0esr-2
In the two screen captures attached, my mouse is at the same place. On the second one, you can see the anchor symbol for the header appears but not the edit button.