What steps will reproduce the problem?
1. Build a baseline bar
2. Create a new bar and choose the baseline bar from the "Clone from..." menu

What is the expected output? What do you see instead?
-) Blacklisted icons do no appear in the "Blacklist" dropdown for the cloned bar.  In fact, nothing appears in that dropdown at all, even if the original cloned bar had blacklisted icons or if you add additional blacklisted icons by right-clicking the icon off the bar.  The blacklist itself appears to work fine for the bar, however, both the cloned portion and any additional blacklisted icons you add post-clone are hidden from the bar as expected.
-) Re-cloning the original bar does not appear to do anything (I'd expect it to reset the bar back to being identical to the chosen source). If you have other bars you can clone a different source bar and then clone your original as a work-around.
-) Changing Event Types on the cloned bar seems to act oddly at times. Savage Roar, a self-only buff, somehow wound up being visible with "All buffs on me" checked but not "My buffs on me". Not entirely sure how this happened, so I'm trying to reproduce what caused it.

What version of the product are you using?
v0.6.8-1-g0097e2a