Cloning Tails from installer copies all files from the live partition

With options Clone & Install and Clone & Upgrade the Tails Installer copies not only the necessary live system files but also all other files on the same partition. So if tails is installed on a USB stick or a SD card and the user stored some other files on the same partition, those files will be copied too.

Related issues

Related to #11387
Has duplicate #11388 (closed)

Original created by @segfault on 7073 (Redmine)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information