Steps to Reproduce:
View the linked pages
1. https://de.wikipedia.org/w/index.php?title=Serben&oldid=208187411&diff=209946284
2. https://de.wikipedia.org/w/index.php?title=Serben&diff=209946284&oldid=207851498
Actual Results:
Note that when opening the first link which shows the diff between the revision before and the revision after the deleted one, you don't see anything like "(One intermediate revision by 2 users not shown)" or "(Eine dazwischenliegende Version von 2 Benutzern wird nicht angezeigt)" in German. When opening the second link, it shows the message "(One intermediate revision by 2 users not shown)" or "(Eine dazwischenliegende Version von 2 Benutzern wird nicht angezeigt)". The second link shows the revision before the revision before the deleted one.
What happens is, the deleted revision is not counted as a revision but the author is counted.
Expected Results:
Depending on the link, the appropriate of the following messages is shown:
1. (One intermediate revision by one user not shown)
2. (2 intermediate revision by 2 users not shown)