Issues erasing part of a link label in MS word

Steps to follow to reproduce:

• Create a new page and save it
• Go to wysiwyg and create a link to a wiki page (e.g. New Page; New Page is also the label)
• Open the page you have just created in MS Word
• Delete a letter from the link label (e.g. the "e" in "New")
• Click "Publish document"
• Open the document in the browser

Result: "Nw" is no longer a part of the link label

Also when you add one word in the label and erase a letter, the label will become plain text and the link will be displayed next to the label (see the attachments)