There seem to be a handful of questions dealing with problems when using package array, like this one.
However, trying to add the missing tag array is flagged:
The tag [array] is too similar to [arrays]. If you think this new tag should be allowed, discuss it on meta.
So, for the time being I put package-array, which is not that ideal either. I think it's worth to distinguish this specific package from using arrays in math mode.
What's a better tag here?
package-(and similarly forclass-), but that kind of Hungarian notation would probably be controversial (and a massive undertaking). Would it work to change the other tomath-arrays? Are we allowed to have similar tags if the community wants it?proof-package,cite-package,acronym-package, they use the convention that the word-packageis suffixed. Maybe we should change the new tagpackage-arrayintoarray-packageas well?array-package. However: how will the old one go away? Looks like I can't delete it or suggest to be deleted.