From a user report – sorry for the lazy bug filing, can tidy up when not out of hours...
00:58 <HuBoro> Hi all, in the huwiki there is a problem with templatediscovery in the Visual editor where it doesn't show exact matches, is this a problem any of you heard about and/or where should I file a bug report?
01:00 <HuBoro> Specifically, user opens the visual editor, tries to search for Szerkeszt, which does not display that template, but displays Szerkesztf. We found a workaround, that if we switch to the old source editor and switch back to the visual editor, it shows up. The issue is also present for Szülhal and Egyért (where Egyért0, Egyért2, and Egyért3 do
01:00 <HuBoro> not show up)
01:07 <HuBoro> 1. The issue is only present if Visual editor is opened first. If the page is refreshed, it occurs again. It's not present if the source editor is opened first and then switched to the visual editor.
01:07 <HuBoro> 2. The issue is present regardless the template was favorited or not.
01:07 <HuBoro> 3. The broken templates have no common denominator, initially we thought this might do something with the TemplateData being in /doc and that doc being referred by the hungarian {{Sablondokumentáció}} instead of {{Documentation}}
01:07 <HuBoro> 4.Nullediting and purging the template and template doc does not help.
01:07 <HuBoro> 5.No matter the search key, the template does not show up.
01:07 <HuBoro> 6.Hitting the API directly correctly sends back the results for the templates

