Sort by order Widget product category BUG

Hello
There is a bug with the sort by order product category widget
as you can see on this picture, the order is not respected.

Its good in backoffice but in front office it do not respect my order
http://prntscr.com/pa6lc2

i have found many topics about it, it seems a bug since the last update but how we can fix it or mannualy ?

regards

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