Tor Browser restarts when using Reader View shortcut (ctrl+alt+r)

Even if the webpage doesn't support reader view, ctrl+alt+r causes Tor Browser to crash/restart and lose the current session. Clicking on the reader view icon to the right of the URL bar works, however.

Produced on Tor Browser 8.0.2, Debian GNU/Linux 9 (64-bit).

Trac:
Username: ev9F8itL

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information