Going back to someone's contest history may show yours instead

[jonathanirvings]

Description: When visiting user X's contest history (not yours), then go to your profile (using the "My profile" button in the upper right dropdown), then press the browser back button, the page will show your contest history instead of user X's contest history.

Steps to reproduce:

1. Log in to TLX
2. Go to https://tlx.toki.id/profiles/fushar/contest-history (assuming you are not logged in as fushar)
3. Click "My profile" button in the upper right dropdown
4. Click the browser "Back" button

Expected: TLX should display fushar's contest history

Actual: TLX displayed your contest history

System: Google Chrome | 92.0.4515.159 (Official Build) (arm64)