Yelp 2.2.0 depends on libgtkhtml 2.1.2 or higher, but it doesn't work with libgtkhtml 3.0. I think it should depend on >=libgtkhtml-2.2* right? Libgtkhtml 3.0 is nicely slotted, so this shouldn't form a problem.
should be =2.2* then and yes we know and it will be fixed in time
opening so i can resolve fixed
is corrected in the ebuilds nowadays.