I haven't clicked it to see if anything will happen. Furthermore, the guidance: 'You can only choose to reinstall when cloning the Persistent Storage.' is not displayed when changing the target device from an 'Install' to one with Tails. I've identified ~~part of~~ the root cause and I'm fixing it while I address #19887 Edit: !1302 fixes this bug related to the Persistent Storage check box when switching target or source devices. The new features/improvements in !1303, !1304 and !1305 are all based on this commit.