Steps to reproduce:
1.Open the Editor.
2.Place the cursor inside a word or text but do not select anything
4.Now go to another page and do command+v (Nothing is getting copied, which is okay as per the fix given in https://bugzilla.wikimedia.org/show_bug.cgi?id=58138)
5.But now select anything from the source page by selecting it
7.Press command+V onto the other page where you were pasting.
Nothing gets copied