This paragraph has to be indented one level deeper than the previous paragraph.
That paragraph should be on the same level.
Here is another one, even deeper.
Back one step.
One step down - ignoring deeper indentation in source.
Consecutive paragraphs are only placed on the same level if their indentation matches.
Using the indentation level used 4 paragraphs above, wont help here.
But the "wrong" indentation of the previous paragraph forces this paragraph to get indented one level deeper than the paragraphs before.
This does not step back.