Add-on details page is returning server error

[ValentinaPC]

Steps to reproduce:

1. Load details page for an add-on/theme on device i.e. https://addons-dev.allizom.org/en-US/android/addon/mobile-password-manager/?src=hp-dl-featured

Expected results: Page is loaded with no display or layout issues.

Actual results: A server error page is loaded.

Notes/Issues:

• may be a regression from mozilla/addons#10453 ?
• tapping on add-on name works after second action, first tap returns an error in the console (screenshot from desktop while in Mobile Site View):

Verified on AMO-dev FF53(Android 7.1.2). Issue is only reproduced on dev. Video:

[ValentinaPC]

Please give us a hand in this, because is blocking QA while testing a massive part from -dev. Thanks!

[tofumatt]

I've figured out what this is and am just submitting the patch now.

[ValentinaPC]

Verified as fixed on AMO-dev FF53(Android 7.1.2). Postfix video: