halacha - Why does the Rambam change language?

In Hilchos Megillah V'Chanukah, the Rambam writes in 2:15

טו. כיצד חובת סעודה זו שיאכל בשר ויתקן סעודה נאה כפי אשר תמצא ידו, ושותה יין עד שישתכר וירדם בשכרות

Why does the Rambam switch from future tense ("you should eat meat") to present tense ("and drink wine...")?

Answer

The Emek Beracha quotes from R' Yisroel Salanter that he held that this was an indication that the Rambam held the mitzvah is to be drunk, not to get drunk. The Rambam held that getting drunk is not an accomplishment that you complete and then are done, but is a continual process throughout the day, and therefore if you sober up, you keep drinking.