STEPS TO REPRODUCE 1. System Settings > Users > Create a new user account 2. Kickoff > Leave > Switch User > Log into the new user account 3. Kickoff > Leave > Switch User > Log back into your original user account 4. System Settings > Users > Delete the new user account while it's still logged in OBSERVED RESULT There are no warnings or errors; you can delete the account while it's still logged in! EXPECTED RESULT At the very least, a warning about this. ADDITIONAL INFORMATION If I try to switch user to the still-logged-in-but-not-deleted user account, it fails to accept the password.
I don't see a thing in AccountsService's DBus interface for this, but maybe we could use get enough data about users on the system from the LoginHistory method. It would probably be easier to parse the output of `users` though.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/5320
Git commit 9abfdd2640bc83608e347e2180cd30198001cb64 by Nate Graham. Committed on 22/04/2025 at 20:48. Pushed by ngraham into branch 'master'. kcm/users: refine "deleting logged-in user" UX Right now there are two problems: 1. Deleting a logged-in user shows no warning about this. 2. Asking to delete the files of a logged-in user fails silently (AccountsService simply won't do it). This commit solves both problems: now the user sees a warning dialog when they try to delete another logged-in user, and it also prevents them from trying to delete a logged-in user's files, instead redirecting them to just delete the account but not the files. To achieve this, I needed to change what the `loggedIn` property does, because previously it was inaccurate, returning whether the queried user is the currently logged-in user. Now it returns whether the quaried user is logged in, and I added a new `isMe` property to hold whether the queried user is the currently logged-in user. FIXED-IN: 6.4.0 M +1 -0 kcms/users/src/CMakeLists.txt M +40 -6 kcms/users/src/ui/UserDetailsPage.qml M +1 -1 kcms/users/src/ui/main.qml M +22 -4 kcms/users/src/user.cpp M +6 -1 kcms/users/src/user.h M +7 -4 kcms/users/src/usermodel.cpp M +2 -1 kcms/users/src/usermodel.h https://invent.kde.org/plasma/plasma-workspace/-/commit/9abfdd2640bc83608e347e2180cd30198001cb64