Mixed datasource UI does not work in 9x

[ryantxu]

What happened:

In 9x, when you select "-- Mixed --" datasource, the dropdown to select datasource does not accept input 😬 (NOTE: the gif does not show me clicking lots on the dropdown!)

I can get the dropdown to open using tab and then arrows, but the mouse does not do anything.

What you expected to happen:

open on click

How to reproduce it (as minimally and precisely as possible):

Use the mixed datasource

[gillesdemey]

We're seeing the same issue in the alert creation flow where we are unable to switch to a different data source – I'm also investigating to see where the click event propagation is being interrupted.

[ashharrison90]

@gillesdemey it's caused by our upgrade of react-select here: #49142

there's an issue on react-select here: JedWatson/react-select#5176

backup option is just revert the update. i'm just investigating now if there's a better way 😄

[gillesdemey]

Gotcha, that makes sense – I was chasing some other changes unrelated to the upgrade of react-select

Reverting sounds like the best way forward for now since event.defaultPrevented is a read-only property