The "maga" tag doesn't exist, but something does

My previous post was locked because the “maga” tag doesn’t exist. Leaving aside that I’m pretty sure it did exist at one point, something is still there because I get two pages of results when I search the term.
 
Is there some special search syntax I’m running into? Or am I getting a cache?

@HeartLinda
 
Yes, the tag used to exist, however, we had already aliased that into “make america great again” by the time the thread was locked. we just forgot to mention that.

@Mildgyth  
It’s not an alias at the moment though. And if it is (that is, adding tag “maga” would switch it to “make america great again”), it’s bad form to have an internal alias that isn’t using the regular alias system.

@Mildgyth
 
If it is a true alias it’s unlike any I’ve seen: Searching for it gives different results than those for “make america great again” and the tag doesn’t redirect. So I assume that “alias” here means something along the lines of “retagged.”

@HeartLinda
 
I fixed that into a proper alias.

It was a caching issue