D20852: Fix to show folding preview when move the mouse from bottom to top

[Christoph Cullmann]

cullmann added a comment.


  Harr, with that change it looks good here. Need that a Diff here or can I commit without?
  
  > Feel free to commit that.
  ===========================
  
  For unit tests: if you have small improvements for the tests that make them more stable, feel free to commit that.
  As long as you take afterwards a look at the CI result on build.kde.org I think that is ok.

REPOSITORY
  R39 KTextEditor

REVISION DETAIL
  https://phabricator.kde.org/D20852

To: loh.tar, #ktexteditor, dhaumann
Cc: cullmann, dhaumann, brauch, kwrite-devel, kde-frameworks-devel, #ktexteditor, domson, michaelh, ngraham, bruns, demsking, sars
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