Steps to reproduce:

1. Select a tag (with photos attached to it)
2. Select the associated photos (Ctrl-A)
3. From the Events menu, select ”New Event…”
4. Repeat steps 1. & 2. for another tag
5. Try to create a new event as in step 3.

What I expect to happen:
To be able to create a new event just as before.

What happens instead:
The ”New Event…” menu item is ghosted and won’t become enabled again unless I shut down Shotwell and restart it.