CMake: Fix settings display not updated

Fixes: QTCREATORBUG-28267
Change-Id: Icf2fb7e5d7a8cd44d7a61ade36be41106aba2138
Reviewed-by: Cristian Adam <cristian.adam@qt.io>

src/plugins/cmakeprojectmanager/cmakesettingspage.cpp

@@ -462,6 +462,7 @@ void CMakeToolItemConfigWidget::onBinaryPathEditingFinished()
 {
     updateQchFilePath();
     store();
+    load(m_model->cmakeToolItem(m_id));
 }
 
 void CMakeToolItemConfigWidget::updateQchFilePath()

src/plugins/cmakeprojectmanager/cmaketool.cpp

@@ -295,6 +295,9 @@ CMakeTool::Version CMakeTool::version() const
 
 QString CMakeTool::versionDisplay() const
 {
+    if (m_executable.isEmpty())
+        return {};
+
     if (!isValid())
         return Tr::tr("Version not parseable");