The assertion fails, ```getDualSolVal``` returns 0, even with ```boundconstraint=True```.

[mmghannam]

          I forgot to delete it, but the assertion fails, ```getDualSolVal``` returns 0, even with ```boundconstraint=True```. 

As a side not, it's annoying that sol is not capitalized in ```getDualsolLinear````

Originally posted by @Joao-Dionisio in https://github.com/scipopt/PySCIPOpt/pull/744#discussion_r1381542154