homebrew: cask drift after an in-app update

♠ Previously . Problem statement : every brew upgrade died on a cask whose app had upgraded itself years ago. % brew upgrade ==> Upgrading 1 outdated package: 1password 7.9.2 -> 8.12.33 ==> Upgrading 1password 7.9.2 -> 8.12.33 Error: 1password: It seems the App source '/Applications/1Password 7.app' is not there. ==> Purging files for version 8.12.33 of Cask 1password That path stopped existing…