After installing flowfuse dashboard-2 version 1.23, the following bugs appeared:
On a dropdown node, when you clear the selection with the cross, no messages appear. It is therefore impossible to detect this clearing action.
With the tabulator node, when a row is selected, normally, msg.topic takes the value "tbNotification." After the update, msg.topic took the value "undefined."
After downgrading to version 1.22.1, these two bugs have been fixed.
This is a general bug in dashboard-2 v1.23, also happening in template nodes. Every message sent as a widget-action (which is what ui-tabulator uses for notifications) is overwritten by the dashboard framework which sets msg.topic to undefined.
This has been raised as issue #1683, and the dashboard development team is aware of it.
for now you will need to stay with dashboard 1.22.1 until this issue is fixed.