PDF files links do not open the file in the OS

Describe the bug

If you drag and drop a pdf file inside a page, you can click on it, and the pdf will open in the pdf viewer of the OS. But if you delete that, and try to add again or add it to another page, it wont open any more.

To Reproduce

Steps to reproduce the behavior:

    1. Drag and drop a pdf file inside a page
    1. Click on it, will open the pdf
    1. Delete the link

4 Add it again

5 Click on it, you cannot open it any more

Expected behavior

If you create a link to a pdf file, after you click on it, it should open in the pdf viewer of the OS

This seems to be fixed in the current releases.