Category Treeview in BE-Forms has gap between 2 lines
In Category Treeview, there is a gap of some pixels between two lines.
See Recursive Categories of tt_news for example.
Same in Typo3 4.1, 4.2 and 4.3
Solution: Change CSS in typo3/sysext/t3skin/stylesheets/typo3-TCEforms.css
(issue imported from #M7454)