Updates on "Display Name" cannot be seen on mobile device

[ValentinaPC]

Steps to reproduce:

1. Load Edit Profile page in AMO-stage https://addons.allizom.org/en-US/firefox/users/edit
2. Change your "Display Name"
3. Navigate to listing pages on device and see display name of an add-on/theme you created

Expected results: Display name is updated.

Actual results: Display name is not updated.

Notes/Issues:

• adding a review on device will be listed under the updated display name
• desktop site in Firefox for Android pages will list the updated display name
• View Mobile Site on desktop will list the old display name while navigating through listing pages, but going from an android add-on details page in desktop view to android add-on details page in mobile view will list the changed display name.

Verified on FF52(Win 7, Android 6.0.1). Issue is reproducing on AMO-stage and AMO-dev. Video for this issue:

[muffinresearch]

Closing this in favour of https://github.com/mozilla/addons/issues/5042 since this is an API issue that needs to be fixed there.