Currently, when viewing most entities such as an artist, release group, release, etc, a tag input field is shown on the sidebar with a JavaScript autocomplete feature. However, since the input field does not have the HTML attribute autocomplete set to off, the browser's autocomplete feature can block the server's own autocomplete suggestions.

To counteract this, we must add the autocomplete=off attribute to the HTML.

File in question: https://github.com/metabrainz/musicbrainz-server/blob/master/root/static/scripts/common/components/TagEditor.js

Discussion on MetaBrainz: https://community.metabrainz.org/t/disable-browser-autocomplete-for-tags-on-release-pages/516239

I have forked and cloned the repository locally and am working on getting this fixed.