Fixed page copying not retaining content

Was when there was no markdown content.
Added tests to cover both HTML and markdown scenarios.
Also removed old console.log

Related to #2463

resources/js/components/page-editor.js

@@ -74,7 +74,6 @@ class PageEditor {
     }
 
     setInitialFocus() {
-        console.log({'HAS': this.hasDefaultTitle});
         if (this.hasDefaultTitle) {
             return this.titleElem.select();
         }