Bug or New Feature?

Sometime between version 2.17.853 and 2.19 .900, CCleaner started clearing the recent history in the Firefox smart location bar. It still shows some other older bookmarks though. I BELIEVE I first started noticing this in 2.19.900. Can someone tell me if this is on purpose or a mistake? Personally, I liked the old behavior where CCleaner deleted the other history but left the smart location bar aka awesome bar alone. I updated to 2.19.901 yesterday and the new behavior is still present.