xfce.xfce4-session: 4.20.0 -> 4.20.2 (#394334)

pkgs/desktops/xfce/core/xfce4-session/default.nix

@@ -1,5 +1,6 @@
 { lib
 , mkXfceDerivation
+, fetchpatch
 , polkit
 , exo
 , libxfce4util
@@ -17,9 +18,25 @@
 mkXfceDerivation {
   category = "xfce";
   pname = "xfce4-session";
-  version = "4.20.0";
+  version = "4.20.2";
 
-  sha256 = "sha256-mn3ky1NzrpQZRkhc605mj+GFhbFq26eW59YKUfnX9X8=";
+  sha256 = "sha256-wd+8W9Z0dH7bqILBUNG9YxpRf8TnRJ/7b3QviM1HVnY=";
+
+  patches = [
+    # Use syntax compatible with most sh shells
+    # The `**` syntax is a bash extension
+    (fetchpatch {
+      url = "https://gitlab.xfce.org/xfce/xfce4-session/-/commit/53d6e20a29948ae7aa179447cef0704786b77f8b.patch";
+      hash = "sha256-c8IU1VOcEYdZJy8Eq2wqSL5tTXt7gKfGOs7jxb8npOE=";
+    })
+
+    # wayland: start a D-Bus session only if there isn't one already
+    # https://gitlab.xfce.org/xfce/xfce4-session/-/issues/218
+    (fetchpatch {
+      url = "https://gitlab.xfce.org/xfce/xfce4-session/-/commit/f6e2805b8a7742172f399d78618313bcb28bf095.patch";
+      hash = "sha256-EViVialDbdLH2SGUtcroo5iGc+B4HVJajV7PMl5q6vs=";
+    })
+  ];
 
   buildInputs = [
     exo