Stop launching random applications when pressing dead keys on Wayland (FS#57016)

PKGBUILD

@@ -4,7 +4,7 @@
 
 pkgname=kwin
 pkgver=5.12.4
-pkgrel=1
+pkgrel=2
 pkgdesc='An easy to use, but flexible, composited Window Manager'
 arch=(x86_64)
 url='https://www.kde.org/workspaces/plasmadesktop/'
@@ -13,9 +13,11 @@ depends=(kscreenlocker xcb-util-cursor plasma-framework kcmutils breeze kinit qt
 makedepends=(extra-cmake-modules qt5-tools kdoctools)
 optdepends=('qt5-virtualkeyboard: virtual keyboard support for kwin-wayland')
 groups=(plasma)
-source=("https://download.kde.org/stable/plasma/$pkgver/$pkgname-$pkgver.tar.xz"{,.sig})
+source=("https://download.kde.org/stable/plasma/$pkgver/$pkgname-$pkgver.tar.xz"{,.sig}
+        kdebug-390110.patch::"https://cgit.kde.org/kwin.git/patch/?id=bec84934")
 sha256sums=('c8bda63cb1365351e10d8e871c330c494530a79ef23cb119dee653a5323b222f'
-            'SKIP')
+            'SKIP'
+            '3e317974d9d783926bb6a12dfd04621f3440f77188c0fdfb5b1dce56fb9ac2ae')
 validpgpkeys=('2D1D5B0588357787DE9EE225EC94D18F7F05997E'  # Jonathan Riddell
               '0AAC775BB6437A8D9AF7A3ACFE0784117FBCE11D'  # Bhushan Shah <bshah@kde.org>
               'D07BD8662C56CB291B316EB2F5675605C74E02CF'  # David Edmundson
@@ -23,6 +25,9 @@ validpgpkeys=('2D1D5B0588357787DE9EE225EC94D18F7F05997E'  # Jonathan Riddell
 
 prepare() {
   mkdir -p build
+
+  cd $pkgname-$pkgver
+  patch -p1 -i ../kdebug-390110.patch # Fix dead keys launching random applications
 }
 
 build() {