Extend reload functions to allow a full reload
Usually a folder is reloaded automatically on file changes, and the user shouldn't have to do it manually. However, when the user *wants* to do it manually, everything is expected to be reloaded, even the files in cache, because their info may have changed. At the moment, this does not happen, and there can be various issues with cached file info, so extension is a first step to allow the user to decide to reload everything in the folder.
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