I'm not sure what's going on with the tag. I recently tried to tag a question as block-matrix related through an edit, but when I did the tag didn't show up.

I can look up the (block-matrices) tag in the site's tags tab to find that there are currently 172 questions with this tag, but clicking on the tag itself redirects me to the list of questions tagged with (matrices). I tried to duplicate this event with defunct/burninated tags, but those don't show up in the search.

So what gives? What's going on here?

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    $\begingroup$ Sounds like something was synonymized. $\endgroup$ – Asaf Karagila Dec 8 '16 at 15:43
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    $\begingroup$ I removed the synonym so now this isn't like this anymore for this tag, but there are similar ones where it could still happen. $\endgroup$ – quid Aug 25 '18 at 23:56

The tag is a synonym of . See here for list of synonyms of matrices and here is list of all tag synonyms.

In practice that means that if you add the tag , it is automatically changed to .

For more details see: What are tag synonyms and merged tags? How do they work?

  • $\begingroup$ Aww. I was going to post this. But you beat me by a few seconds. $\endgroup$ – Asaf Karagila Dec 8 '16 at 15:44
  • $\begingroup$ Perfect. Thanks, to both of you. $\endgroup$ – Omnomnomnom Dec 8 '16 at 15:45
  • $\begingroup$ Is this the desired behavior? Do we actually want it to be synonymized? Where was the original discussion of this? $\endgroup$ – Nick Alger Dec 10 '16 at 18:17
  • $\begingroup$ @NickAlger I do not recall such a discussion on meta and I was not able to find one. In the list of tag synonyms you can see that it was done not by a moderator but by voting of regular users. In fact, the users who proposed this particular synonym even got synonymizer badge - so I assume that the date when the badge was awarded is the same as the date when the synonym was approved. $\endgroup$ – Martin Sleziak Dec 10 '16 at 18:29
  • $\begingroup$ It is probably clear, but I will mention anyway that the question whether they should synonyms is different from the OPs questions. If there is need to discuss it, then it should be done elsewhere - either in the designated thread or as a separate question on meta. $\endgroup$ – Martin Sleziak Dec 10 '16 at 18:30

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