Selecting another component does not work after discarding changes

Steps to reproduce:

1. Go to a channel
2. Select a component
3. Do a change in the right side panel (e.g. switch template)
4. Select another component
5. Discard the changes (Select discard option from the dialog)

Expected result:

The another component is opened

Actual result:

Nothing is shown in the right side panel. You cannot continue working

Additional info:

This works in 14.2.2. Pressing the Save and Cancel button in the modal dialog is also ok, so only Discard does not work.