Project activity feed doesn't list events in order

Summary

When an RSS feed of the activity log accessible from the top navigation bar in GitLab is inspected, events are not ordered in any specific way. We expect them to be ordered sequentially with the most recent events on top as is the case with the RSS activity feed in groups.

Steps to reproduce

1. Navigate to GitLab.com and log in.
2. Click on Activity along the top navigation bar.
3. Observe how events are ordered with the most recent on top.
4. Click the RSS feed button to the right.
5. Open up the feed in a text editor and observe that the events are not ordered in any specific way.

Example Project

N/A

What is the current bug behavior?

Currently, the events listed in the RSS feed appear to not be ordered sequentially.

What is the expected correct behavior?

We would expect this feed to behave as the group RSS activity feed does with each event listed sequentially, the most recent at the top.

Output of checks

This bug happens on GitLab.com: 12.1.0-pre 7d840e4bbeb

ZD: https://gitlab.zendesk.com/agent/tickets/125762 (Internal)

/cc @jeremy