Uncaught TypeError in ticket zoom highlighter

[bolah2009]

Infos:

• Used Zammad version: develop / (5.1)
• Installation method (source, package, ..): any
• Operating system: any
• Database + version: any
• Elasticsearch version: any
• Browser + version: verified on Opera v83 (Chromium based)

Expected behaviour:

No error in the console when ticket zoom highlighter is changed to a different colour

Actual behaviour:

When the highlighter is changed in ticket zoom, an Uncaught TypeError type error shows in the console.

Steps to reproduce the behaviour:

• Open a ticket zoom

• Attempt to change the highlighter colour to a different colour
  

• The console will output the following error message:

      Uncaught TypeError: Cannot read properties of undefined (reading 'attr')
      at TicketZoomHighlighter.App.TicketZoomHighlighter.TicketZoomHighlighter.toggleHighlightAtSelection (application.js:109180:15)
      at TicketZoomHighlighter.toggleHighlightAtSelection (application.js:108933:61)
      at TicketZoomHighlighter.App.TicketZoomHighlighter.TicketZoomHighlighter.pickColor (application.js:109134:19)
      at TicketZoomHighlighter.pickColor (application.js:108933:61)
      at HTMLAnchorElement.<anonymous> (application.js:20352:31)
      at HTMLDivElement.dispatch (application.js:5431:27)
      at HTMLDivElement.elemData.handle (application.js:5235:28)
  

Yes I'm sure this is a bug and no feature request or a general question.