Does anyone know how to submit bugs to Microsoft to fix? Since this issue occurs on a _layouts page I'm very hesitant to look into making any changes there since historically it has not been supported to modify those pages.
The issue:
On Enterprise wiki's you can setup the Wiki Categories column to use a Managed Metadata Service term set. This allows you to tag pages, and out of the box this turns the tags into links:
This brings you to a _layouts page (_layouts/15/Categories.aspx?....) that lists other Enterprise Wiki pages with the same tag, and a link to "search for pages with this category":
Clicking on this link brings you to the OSSSearchResults page with the WikiCategory={Tag Name] already specified:
The problem with this format, is the = symbol means only exact matches will be returned (notice the 1 result). So in this case, only enterprise wiki pages that only have one wiki category specified, and the wiki category of Browser is returned. Any
pages with multiple wiki categories even if one of the tags is Browser will not be returned.
Instead the search format should be formatted: WikiCategory:{Tag Name} which will return all pages that contain the wiki category tag:
*Notice how both the pages that have the Browser tag specified are now returned.
Nick Hurst