I got my Xcode into a non-functional state when I can no longer start a search: once I press ⌘+F, Xcode hangs with a spinning pinwheel, and stops responding. Once this happens, my only option is to force quit and restart.
I tried looking for the saved settings in the workspace and project directories, but the recent search options that I am looking to delete appear to be stored elsewhere. I know that I could clear recent searches through the UI, but that would require bringing up the search dialog, which hangs Xcode.
I would like to reset Xcode to its original state. How do I do it without reinstalling Xcode?