Create branch from a trello card fails loading the list of available branches on the repository

#!javascript

Uncaught TypeError: Cannot read property 'trim' of null
    at HTMLSelectElement.<anonymous> (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:108:11793)
    at HTMLSelectElement.dispatch (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:33412)
    at HTMLSelectElement.g.handle (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:30151)
    at Object.trigger (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:32504)
    at Object.e.event.trigger (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:71:6692)
    at HTMLSelectElement.<anonymous> (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:38497)
    at Function.each (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:84:12163)
    at e.fn.init.each (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:84:10132)
    at e.fn.init.trigger (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:38472)
    at HTMLSelectElement.t (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:108:10201)
    at HTMLSelectElement.dispatch (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:33412)
    at HTMLSelectElement.g.handle (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:30151)
    at Object.trigger (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:32504)
    at Object.e.event.trigger (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:71:6692)
    at HTMLSelectElement.<anonymous> (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:38497)
    at Function.each (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:84:12163)
    at e.fn.init.each (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:84:10132)
    at e.fn.init.trigger (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:38472)
    at e.fn.init.re.fn.(anonymous function) [as change] (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:94:58024)
    at t.default (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:108:11932)
    at e.default (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/branches.js:1:84345)
    at e.Router./?$ (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/branches.js:1:73267)
    at i (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:154:38726)
    at n (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:154:32149)
    at e.Router.d.invoke (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:154:38827)
    at r (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:154:37980)
    at e.Router.d.dispatch (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:154:38329)
    at e.Router.handler (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:154:35344)
    at e.Router.d.init (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:154:35686)
    at Object.2921 (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/branches.js:1:73313)
    at t (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:1:101)
    at Object.3524 (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/branches.js:1:93267)
    at t (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:1:101)
    at window.webpackJsonp (https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/common.js:1:418)
    at https://d301sr5gafysq2.cloudfront.net/3c9e31064e42/dist/webpack/branches.js:1:1