Allow changing the wordBasedSuggestions via configuration service

monaco-editor version: 0.17.0
Browser: Chrome
OS: Windows 10
monaco editor with custom added typescript definition files.
for language = javascript Intellisense shows all words ignoring the wordBasedSuggesions setting.

var mEditor = monaco.editor.create(document.getElementById(editorId), {
                    value: '',
                    language: 'javascript',
                    automaticLayout: true,
                    scrollBeyondLastLine: false,
                    wordBasedSuggestions: false
                });
mEditor.setModel(null);
//@ts-ignore
var model = monaco.editor.createModel('', 'javascript', filename);
mEditor.setModel(model);

See below. Clearly all symbols except ArrayUtils ( provided by a d.ts ) are not fit as a property of variable a.

Start with the provided Monaco Editor reproduction, especially the wordBasedSuggestions option and the setModel/createModel sequence. Trace how the configuration is applied when the JavaScript model is replaced, then verify that disabling word-based suggestions suppresses unrelated symbols while retaining the custom ArrayUtils definition.