What exactly does the Size of a particular Backup ID in the webui mean? Is it the total space used by all chunks in that Backup ID or is it only the space used by chunks that are unique to this backup ID?
For example, in the screenshot below, if I delete all snapshots for the BackupID that corresponds to the blue line (around 1 TB), will 1 TB definitely be freed up (after pruning, of course) or is it possible that much less is freed up if many of the chunks used in that backup ID are also used by other backup IDs?
