Fragment Web Item in Tempo drop-down menu doesn't open dialog box

When using Fragment Web Item to open a dialog box, it will not work when it is placed in Tempo drop-down menu. Instead of popping up the dialog box, it will access the page directly instead.

Steps to Reproduce

1. Install Tempo and ScriptRunner 6.44.0 plugins
2. Create a REST endpoint using the sample script here
3. Create a Fragment Web Item:
   • What section should this go in: tempo_menu/tempo_menu_dropdown
   • Condition: return true
   • Do what: Run code and display a dialog
   • Link: /rest/scriptrunner/latest/custom/showDialog
4. Click on the created Web Item
   • In the Jira Header, click on 'Tempo' and it should be there

Expected Behaviour

The Web Item would display a dialog box:

Actual Behaviour

The Web Item accessed the REST endpoint page directly instead: