Select people who like to eat burgers and who like to paint.
Select people who like to eat burgers and like to paint.
Do they mean the same?
I think Example 1 can mean I am allowed to select people who only like to eat burgers or people who only like to paint.
However, Example 2, to me, means that I can only select people who like both eating burgers and painting. Example 1 can probably be interpreted this way as well.