Fix: Overwriting global type variables causes crash in ConfigItem::Commit()

fixes #11484

diff --git a/lib/config/configitem.cpp b/lib/config/configitem.cpp
index 83d40810b744f203d71a6d5e98f3419f6571c8c3..267328a8ce68bc13f475a6529146b223d39a4d19 100644 (file)
--- a/lib/config/configitem.cpp
+++ b/lib/config/configitem.cpp
@@ -168,7 +168,8 @@ ConfigObject::Ptr ConfigItem::Commit(bool discard)
 
        /* Make sure the type is valid. */
        Type::Ptr type = Type::GetByName(GetType());
-       ASSERT(type && ConfigObject::TypeInstance->IsAssignableFrom(type));
+       if (!type || !ConfigObject::TypeInstance->IsAssignableFrom(type))
+               BOOST_THROW_EXCEPTION(ScriptError("Type '" + GetType() + "' does not exist.", m_DebugInfo));
 
        if (IsAbstract())
                return ConfigObject::Ptr();