Fix dropdown menu selection (#5847)

red-001 · nerzhul · commit a7787bb9d278 · 2017-06-01T08:00:26.000+02:00
This fixes a bug that occurred when the selection list of a drop down menu was changed but the name was still the same.
diff --git a/src/guiFormSpecMenu.cpp b/src/guiFormSpecMenu.cpp
@@ -2005,6 +2005,7 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
 	m_tooltips.clear();
 	m_inventory_rings.clear();
 	m_static_texts.clear();
+	m_dropdowns.clear();
 
 	// Set default values (fits old formspec values)
 	m_bgcolor = video::SColor(140,0,0,0);
