There is some autocomplete function when typing tags. But only for the tags shown in the filter (?), I have many more tags which are not shown in the filter and also not autocompleted.
Update for Chrome extension will arrive in next few hours.
Do that works correctly now? If you have any issues share them in comments, and I will change status of this issue back.
@Rustem Mussabekov: that’s looking promising indeed! No problems seen so far. Thanks for this fix!