I have the following tags:

- kde
- kubuntu
- kwin
- plasma
- plasma-5

Today I discovered that tagged questions have the following css:

    .tagged-interesting {
        box-shadow: inset 0 1px 0 
        rgba(255,255,255,0.25);
    }
    
    
    .tagged-interesting {
        background-color: 
        #fffbec;
    }

But the css seems to be applied only when **two** tags are present. 

[![Questions highlighted only when two tags are present][1]][1]

In the image above, questions 1, 2, and 4 have two of my tags and are highlighted. Questions 3 and 5 have only one of my tags and aren't highlighted.

I would expect the css to be applied even when one tag is present.


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I've checked with Firefox 71 (with Stylus inactivated & uBlock origin active) Google Chrome 78.0.3904.108 (no extensions) and Falkon 3.0.0 (internal ad blocker disabled and no other extensions active).

  [1]: https://i.sstatic.net/3CsT0.png