Problem with adding external links to tags in popup

Hello,

I don't know if I use the new function right.

I have a book in calibre with a special tag and I have another book in calibre which describes this tag.

If I enter a link to the tag to the description book - it works (it will change the book).
If I enter a link to the tag to the description book which should open the description book in a quickview (popup) then the orignal book is shown in quickview instead of the description book.

The same thing is if I use series or author links.