Add waiter to treeview #47
Description
Treeview is slow to load - use {waiter} to add a spinner. Ideally, we'd be able to remove "None" at the start - I think I've fixed the issue that meant I had to add "None" as an option.
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Treeview is slow to load - use {waiter} to add a spinner. Ideally, we'd be able to remove "None" at the start - I think I've fixed the issue that meant I had to add "None" as an option.