The Last Modified text should not appear when creating/editing a non-existent page. This gives an incorrect information to the editor that the page exists, though it doesn't.

Steps to reproduce:

1. Install the extension.
2. Click on a red-link to attempt creation of a page.
3. The link/text of last modified exists.

This should be relatively easy for someone to fix, but I can't say it myself till someone else feels the same way. A good fix is to check if the page exists from the Javascript module before the extension decides to display the last modified text.

Version: master
Severity: normal