49ers may already be stuck with Kaepernick’s 2016 salary

April Fool’s Day may have no relevance to the 49ers and Colin Kaepernick, after all. The trio of offseason surgeries to Kaepernick (including a left shoulder procedure that landed him on IR in November) may have already tied the team’s hands as to the $11.9 million in salary owed to Kaepernick in 2016. Technically guaranteed…