I'm seeing a very frustrating thing:
IDEA 8.0 (#9144) is sometimes changing tabs to spaces. This for me is a very bad thing, because I use a lot of tabs within lines (not just at the beginning) to achieve columnar formatting in my code.
I have the "Use tab characters" on and "Smart tabs" off. (If Smart tab is on, the problem is worse, in the sense that even more instances of tabs being replaced with spaces occur.)
What can I do to get IDEA to preserve my tabs? Versions 6 and 7 did not exhibit this behavior and I consider it a serious degradation.