diff --git a/.github/workflows/close_prs.yml b/.github/workflows/close_prs.yml
new file mode 100644
index 0000000..af5122e
--- /dev/null
+++ b/.github/workflows/close_prs.yml
@@ -0,0 +1,18 @@
+name: Close Pull Request
+
+on:
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: superbrothers/close-pull-request@v3
+      with:
+        comment: |
+          Thanks for your interest in contributing to river!
+
+          Unfortunately, you are in the wrong place. As stated in the README, this github repo is a read-only mirror and development happens on codeberg: https://codeberg.org/river/river.
+
+          Please open a pull request on codeberg instead.
diff --git a/river/Cursor.zig b/river/Cursor.zig
index 3b4e0a3..29e7ed9 100644
--- a/river/Cursor.zig
+++ b/river/Cursor.zig
@@ -769,6 +769,14 @@ fn handleRequestSetCursor(
 
 pub fn hide(cursor: *Cursor) void {
     if (cursor.pressed_count > 0) return;
+
+    // Hiding the cursor and sending wl_pointer.leave whlie a pointer constraint
+    // is active does not make much sense. In particular, doing so seems to interact
+    // poorly with Xwayland's pointer constraints implementation.
+    if (cursor.constraint) |constraint| {
+        if (constraint.state == .active) return;
+    }
+
     cursor.hidden = true;
     cursor.wlr_cursor.unsetImage();
     cursor.xcursor_name = null;
diff --git a/river/Seat.zig b/river/Seat.zig
index 8751aa7..6fc7c65 100644
--- a/river/Seat.zig
+++ b/river/Seat.zig
@@ -489,7 +489,6 @@ fn tryAddDevice(seat: *Seat, wlr_device: *wlr.InputDevice) !void {
 
             seat.wlr_seat.setKeyboard(keyboard.device.wlr_device.toKeyboard());
             if (seat.wlr_seat.keyboard_state.focused_surface) |wlr_surface| {
-                seat.wlr_seat.keyboardNotifyClearFocus();
                 seat.keyboardNotifyEnter(wlr_surface);
             }
         },
diff --git a/river/Server.zig b/river/Server.zig
index e1fda5f..895f1cc 100644
--- a/river/Server.zig
+++ b/river/Server.zig
@@ -289,21 +289,17 @@ fn allowlist(server: *Server, global: *const wl.Global) bool {
     if (server.drm) |drm| if (global == drm.global) return true;
     if (server.linux_dmabuf) |linux_dmabuf| if (global == linux_dmabuf.global) return true;
 
-    {
-        var it = server.root.all_outputs.iterator(.forward);
-        while (it.next()) |output| {
-            if (global == output.wlr_output.global) return true;
-        }
-    }
-
-    {
-        var it = server.input_manager.seats.first;
-        while (it) |node| : (it = node.next) {
-            if (global == node.data.wlr_seat.global) return true;
-        }
-    }
-
-    return global == hackGlobal(server.shm) or
+    // We must use the getInterface() approach for dynamically created globals
+    // such as wl_output and wl_seat since the wl_global_create() function will
+    // advertise the global to clients and invoke this filter before returning
+    // the new global pointer.
+    //
+    // For other globals I like the current pointer comparison approach as it
+    // should catch river accidentally exposing multiple copies of e.g. wl_shm
+    // with an assertion failure.
+    return global.getInterface() == wl.Output.getInterface() or
+        global.getInterface() == wl.Seat.getInterface() or
+        global == hackGlobal(server.shm) or
         global == hackGlobal(server.single_pixel_buffer_manager) or
         global == server.viewporter.global or
         global == server.fractional_scale_manager.global or
diff --git a/river/command/view_operations.zig b/river/command/view_operations.zig
index 285717d..4f1319b 100644
--- a/river/command/view_operations.zig
+++ b/river/command/view_operations.zig
@@ -67,6 +67,7 @@ pub fn swap(
         assert(!target.pending.float);
         assert(!target.pending.fullscreen);
         seat.focused.view.pending_wm_stack_link.swapWith(&target.pending_wm_stack_link);
+        seat.cursor.may_need_warp = true;
         server.root.applyPending();
     }
 }