Fix repainting issues (FS#76322)

PKGBUILD

@@ -4,7 +4,7 @@
 
 pkgname=kwin
 pkgver=5.26.2.1
-pkgrel=1
+pkgrel=2
 pkgdesc='An easy to use, but flexible, composited Window Manager'
 arch=(x86_64)
 url='https://kde.org/plasma-desktop/'
@@ -15,16 +15,22 @@ makedepends=(extra-cmake-modules qt5-tools kdoctools krunner wayland-protocols p
 optdepends=('maliit-keyboard: virtual keyboard for kwin-wayland')
 replaces=(kwayland-server)
 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}
+        https://invent.kde.org/plasma/kwin/-/commit/2339f7bf.patch)
 install=$pkgname.install
 sha256sums=('7c9e921226f85c8f8e835b8bf63ae67da800d6921ba148618e570bf4825f3364'
-            'SKIP')
+            'SKIP'
+            '12ed726350260507e5305427d967519da56c37e59004139f9ee5f8a9a994f7d6')
 validpgpkeys=('E0A3EB202F8E57528E13E72FD7574483BB57B18D'  # Jonathan Esk-Riddell <jr@jriddell.org>
               '0AAC775BB6437A8D9AF7A3ACFE0784117FBCE11D'  # Bhushan Shah <bshah@kde.org>
               'D07BD8662C56CB291B316EB2F5675605C74E02CF'  # David Edmundson <davidedmundson@kde.org>
               '1FA881591C26B276D7A5518EEAAF29B42A678C20') # Marco Martin <notmart@gmail.com>
 options=(debug)
 
+prepare() {
+  patch -d $pkgname-$pkgver -p1 < 2339f7bf.patch # https://bugs.kde.org/show_bug.cgi?id=461032
+}
+
 build() {
   cmake -B build -S $pkgname-$pkgver \
     -DCMAKE_INSTALL_LIBEXECDIR=lib \