Fix bug in selectionChange event when selecting objects using ctrl-click (command click on mac). #41
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When selecting multiple items using ctrl-click, the selectionChange event emits an event where the oldValue array has 0 items and newValue array has 1 item when selecting the first item.
But when selecting the second item, the oldValue array incorrectly has 0 items and newValue incorrectly has 1 item. The expected behavior is that on the second ctrl-selection, the oldValue has 1 item and newValue has 2 items.
NOTE: I unfortunately was not able to get either
npm run build
ornpm test
working locally to verify that the fix worked. If y'all have any guidance there, that would be much appreciated :)