Please add a package Conflict for deepin-kwin

At some point deepin-kwin (and other deepin packages) got pulled in by a package dependency. I am reporting first hand extremely frustrating experience that kwin and deepin-kwin conflict. Hopefully an express conflict in the package manager will help other users avoid and possibly escape this issue if they've encountered it as well.

These are some journalctl -xu lines that are evidence of the issue:

Oct 25 18:35:50 HOSTNAME systemd[1066]: Failed to put bus name to hashmap: File exists
Oct 25 18:35:50 HOSTNAME systemd[1066]: dde-session@x11.service: Two services allocated for the same bus name org.kde.KWin, refusing operation.
Oct 25 18:35:50 HOSTNAME systemd[1066]: Failed to put bus name to hashmap: File exists
Oct 25 18:35:50 HOSTNAME systemd[1066]: dde-session@wayland.service: Two services allocated for the same bus name org.kde.KWinWrapper, refusing operation.
Oct 25 18:35:50 HOSTNAME systemd[1066]: dde-session-pre target, tasks to be run before the deepin desktop environment is initialized. is inactive.

Oct 25 18:35:51 HOSTNAME xdg-desktop-portal-kde[5437]: qt.qpa.xcb: could not connect to display :0
Oct 25 18:35:51 HOSTNAME dde-widgets[5378]: QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled
Oct 25 18:35:51 HOSTNAME dde-widgets[5378]: Warning: fallback to QtQuick software backend.
Oct 25 18:35:51 HOSTNAME kernel: xdg-desktop-por[5437]: segfault at 29489a18723d ip 00007f5e3425a947 sp 00007ffebe2bb900 error 4 in libQt5XcbQpa.so.5.15.11[7f5e3424d000+9b000] likely on CPU 0 (core 0, socket 0)
Oct 25 18:35:51 HOSTNAME kernel: Code: ff 74 0a 48 8b 07 ff 50 20 48 8b 43 20 48 85 c0 0f 84 4d 02 00 00 48 8b 43 08 48 63 50 08 48 8b 44 d0 10 48 8d 15 99 fb ff ff <48> 8b a8 08 03 00 00 48 8b 05 b3 0d 0f 00 48 8b 38 48 8b 07 48 8b
Oct 25 18:35:51 HOSTNAME systemd-coredump[5452]: Process 5437 (xdg-desktop-por) of user 1000 dumped core.

Stack trace of thread 5437:
#0 0x00007f5e3425a947 _ZN15QXcbIntegration10initializeEv (libQt5XcbQpa.so.5 + 0x42947)
#1 0x00007f5e39b3fad2 _ZN22QGuiApplicationPrivate20eventDispatcherReadyEv (libQt5Gui.so.5 + 0x13fad2)
#2 0x00007f5e3969bb47 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x29bb47)
#3 0x00007f5e39b3fb26 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x13fb26)
#4 0x00007f5e3af75b9e _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x175b9e)
#5 0x000056159fed60f4 n/a (xdg-desktop-portal-kde + 0x250f4)
#6 0x00007f5e38e45cd0 n/a (libc.so.6 + 0x27cd0)
#7 0x00007f5e38e45d8a __libc_start_main (libc.so.6 + 0x27d8a)
#8 0x000056159fed7645 n/a (xdg-desktop-portal-kde + 0x26645)

Stack trace of thread 5450:
#0 0x00007f5e38f20f6f __poll (libc.so.6 + 0x102f6f)
#1 0x00007f5e37b6c206 n/a (libglib-2.0.so.0 + 0xb8206)
#2 0x00007f5e37b0c112 g_main_context_iteration (libglib-2.0.so.0 + 0x58112)
#3 0x00007f5e396eaf7c _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2eaf7c)
#4 0x00007f5e3969ae74 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x29ae74)
#5 0x00007f5e394f74f6 _ZN7QThread4execEv (libQt5Core.so.5 + 0xf74f6)
#6 0x00007f5e3a0e0a9a n/a (libQt5DBus.so.5 + 0x18a9a)
#7 0x00007f5e394f371a n/a (libQt5Core.so.5 + 0xf371a)
#8 0x00007f5e38eaa9eb n/a (libc.so.6 + 0x8c9eb)
#9 0x00007f5e38f2e7cc n/a (libc.so.6 + 0x1107cc)
ELF object binary architecture: AMD x86-64