Have a look at the edits with the summary "Inneres" (the single one from 0:21 is
not of interest). What happened (which doesn't correnspond to the history):
First I edited the page, asking to unblock the article Inneres. This edit is at
this saved normally, the page looks normal. Then Rax answered the 1st time,
still everything is normal. Gunthers edit is saved normal too, but after I
answered something got wrong. The history got messed up, the edits got in
disorder. After this Rax answered and me again, and after that I made a test
edit adding only a bit.
If you only switch through the diffview (by selecting a correct, nonbroken
starting point) you'll see the correct order, but the history is totally messed
up. The discussion is just linear. First error was the my first 2 edits
(starting and answer to gunther) swapped, then in consequence of the following 2
edits the history got even more in disorder.
Bdk sayd it would be good to make a bugreport.