This ticket acts as a template and a set of guidelines for the information you should try to put into a bug description, as well as some optional information that can be added after code review (i.e. diagnosis & notes for testing). It's written to be copy/paste-able (use the "view raw" option to get at the markup for easier pasting w/ formatting).
You can also find the following information here: https://www.mediawiki.org/wiki/Wikimedia_Apps/Team/Bug_reporting
Briefly describe the issue in a single sentence
Set to "Needs Triage"
== Steps to reproduce
# This should be a description
# Of the steps a tester executes
# To get to the point where expectations aren't met:
== Expected results
What's supposed to happen after the last reproduction step.
== Actual results
What actually happened on the last reproduction step. Screenshots, GIFs, screencasts, stacktraces, and OTRS tickets are worth a thousand (or more) words.