1. Make sure `/applications/view/PhabricatorFactApplication/` is installed
2. Go to `/maniphest/report/burn/` for global view, go to some URL like `/maniphest/report/burn/?project=PHID-PROJ-1234567890abcdef` for per-projcet view
3. See that the "Burnup Rate" chart is rendered in the same way before and after applying this patch
4. Optionally, run `./bin/cache purge --all` (but looks like no charts are cached?) and reload
5. Optionally, go to `/project/reports/1/` and as expected the burndown chart is the same as in step 2