fix: Forward wayland IME events in SCTK only when single-instance

feature enabled

winit/Cargo.toml

@@ -37,6 +37,8 @@ cctk = [
     "xkeysym",
     "dep:cctk",
 ]
+# Prevents multiple separate process instances.
+single-instance = []
 
 
 [dependencies]

winit/src/platform_specific/wayland/handlers/text_input.rs

@@ -69,6 +69,10 @@ impl Dispatch<ZwpTextInputV3, (), SctkState> for TextInputManager {
         _conn: &Connection,
         _qhandle: &QueueHandle<SctkState>,
     ) {
+        if cfg!(not(feature = "single-instance")) {
+            return;
+        }
+
         let kbd_focus =
             match state.seats.iter_mut().find_map(|s| s.kbd_focus.clone()) {
                 Some(surface) => surface,