And the vine had three branches (Gen. 40:10)
As explained in the Midrash, the "vine" is an allusion to the Jewish people, as it states in Psalms (80:9): "You have brought a vine from Egypt." In the same way that wine is described as "bringing joy to G-d and man," so too does every single Jew possess this quality of "wine": an innate love for G-d, inherited from his ancestors, that enables him to rejoice in the L-rd. (Torah Ohr)
The chief butler did not remember Joseph, and forgot him (Gen. 40:23)
While "not remembering" Joseph indicates a passive, unintentional action, "forgetting" refers to the chief butler's deliberate attempt to dismiss him from his mind. His failure to remember Joseph was purposeful. (Ohr HaTorah)