(Creating bug from https://gerrit.wikimedia.org/r/#/c/149645/)
In May 2014 this changeset broke 'category.py remove' for categories with only files and no pages.
https://gerrit.wikimedia.org/r/#/c/130301/
It is also a significant performance regression as 'categoryinfo' requires the server to fetch all of the category members, which is slow, only to return counts, when category.py needs to iterate over the category members, so it must hit the server again.
Version: core-(2.0)
Severity: normal