doesnt launch when hostname changed

[jubalh]

sudo hostname earth
lxqt-sudo yast2

No protocol specified
lxqt-sudo: Stripping child environment except for: DISPLAY, LANG, LANGUAGE, LC_ADDRESS, LC_ALL, LC_COLLATE, LC_CTYPE, LC_IDENTIFICATION, LC_MEASUREMENT, LC_MESSAGES, LC_MONETARY, LC_NAME, LC_NUMERIC, LC_PAPER, LC_TELEPHONE, LC_TIME, PATH, QT_PLATFORM_PLUGIN, QT_QPA_PLATFORMTHEME, WAYLAND_DISPLAY, XAUTHORITY

No protocol specified
No protocol specified
qt.qpa.xcb: could not connect to display :0
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
error: XDG_RUNTIME_DIR not set in the environment.
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.

We should not strip $XAUTHLOCALHOSTNAME.

Link to original bugreport.

[palinek]

GTM