Contributors graph is not graphing properly on 0 commits

Summary

If there are no contributions on a certain period of time, Gitlab shows a sloping graph from the time of the last commit to the next commit instead of showing blank.

Steps to reproduce

Commit 10 items or higher at a single time then do not commit for a long period of time. The next commit will happen in around 3 months.

What is the current bug behavior?

A downward sloping graph is shown - which seems to suggest that there are still commits at that point in time.

What is the expected correct behavior?

The graph is expected to be 0.

Relevant logs and/or screenshots

Output of checks

This bug happens on GitLab.com