Error when user has no recovery code

[clochix]

SyntaxError: Unexpected token u
    at Object.parse (native)
    at /usr/local/cozy/apps/proxy/node_modules/cozy-proxy/build/server/middlewares/authentication.js:76:18
    at /usr/local/cozy/apps/proxy/node_modules/cozy-proxy/build/server/models/user.js:74:14
    at /usr/local/cozy/apps/proxy/node_modules/cozy-proxy/node_modules/cozydb/lib/model.js:213:18
    at /usr/local/cozy/apps/proxy/node_modules/cozy-proxy/node_modules/cozydb/lib/cozymodel.js:294:18
    at parseBody (/usr/local/cozy/apps/proxy/node_modules/cozy-proxy/node_modules/cozydb/node_modules/request-json-light/main.js:75:10)
    at IncomingMessage.<anonymous> (/usr/local/cozy/apps/proxy/node_modules/cozy-proxy/node_modules/cozydb/node_modules/request-json-light/main.js:109:14)
    at emitNone (events.js:72:20)
    at IncomingMessage.emit (events.js:166:7)
    at endReadableNT (_stream_readable.js:913:12)