Publish option cannot open with CMS 11.15

Found in

EPiServer.Marketing.Testing 2.5.4

Fixed in

EPiServer.Marketing.Testing 2.5.5

Created

Jan 28, 2019

Updated

Mar 15, 2019

State

Closed, Fixed and tested


Description

Steps to reproduce

  1. Install EPiServer.Marketing.Testing.2.5.4 with EPiServer.CMS.UI.11.14.0.
  2. Create a new page.
  3. Try to open it.

Expected:
Publish menu works normally

Actual:
Unable to publish page or open publish option.

Console shows error:

Uncaught TypeError: Cannot read property 'contentData' of null
    at Object._isOpenSetter (widgets.js:2)
    at Object.set (epi.js:2)
    at Object.onOpen (widgets.js:2)
    at Object.open (widgets.js:2)
    at Object.advice (dojo.js:15)
    at Object._264 [as open] (dojo.js:15)
    at Object.openDropDown (widgets.js:2)
    at Object.<anonymous> (widgets.js:2)
    at dojo.js:15
    at Object.loadAndOpenDropDown (widgets.js:2)