Comment 75 for bug 883459

To be more precise, even after this fix, you can still see the "17-duplicates" bug happens, not on mails that came since you started to use 4.9.3, but on previously received mails ; I had to click on every single folder of my mail folder tree to see some duplications, and remove duplicates manually.

I guess now I checked all my folders, and regarding how the fix from András fixed things for me, I won't see anymore duplication, hopefully.