8187635: On Windows Swing changes keyboard layout on a window activation

Reviewed-by: serb, ssadetsky

src/windows/native/sun/windows/awt_Component.cpp

@@ -1803,6 +1803,7 @@ LRESULT AwtComponent::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
                           "new = 0x%08X",
                           GetHWnd(), GetClassName(), (UINT)lParam);
           mr = WmInputLangChange(static_cast<UINT>(wParam), reinterpret_cast<HKL>(lParam));
+          g_bUserHasChangedInputLang = TRUE;
           CallProxyDefWindowProc(message, wParam, lParam, retValue, mr);
           // should return non-zero if we process this message
           retValue = 1;