--- a/qt4/immodule/quiminputcontext.cpp
+++ b/qt4/immodule/quiminputcontext.cpp
@@ -474,6 +474,15 @@ void QUimInputContext::reset()
     uim_reset_context( m_uc );
 #ifdef Q_WS_X11
     mCompose->reset();
+    // reset() is called before setFocusWidget() is called on focus out.
+    // By calling commitString() before calling clearPreedit(),
+    // we can prevent preedit text from being removed
+    // when an editing widget loses focus.
+    // According to the Qt4 documentation on QInputContext::reset(),
+    // calling commitString() in reset() with a non-empty string
+    // will break input state consistency, but this code works on X11.
+    if ( m_isComposing )
+        commitString( getPreeditString() );
 #endif
     clearPreedit();
     updatePreedit();