The "Show Repository Browser" keyboard shortcut was changed to ⌘O, which has lower priority than, and overridden by the keyboard shortcut for "Open", which is also ⌘O. This makes it IMPOSSIBLE to open the organizer with the keyboard. This is an atrocious UX and makes the product feel like it was designed by gremlins. 

PLEASE FIX THIS. It's a small issue that should be an easy fix that is a massive annoyance to anyone who likes to use keyboard shortcuts (AKA 99% of SourceTree's users).