Contingency: do you need to maintain concentration on stored spell when Contingency is triggered?

@JeremyECrawford Contingency: if the spell stored requires Concentration, do you need to maintain concentration on it when Contingency is triggered?

— Marc Sharma (@LeMarcSharma) December 19, 2017

The contingent spell stored by contingency doesn't come into effect until its condition is met. When that happens, the contingent spell functions as normal, including its duration. #DnD https://t.co/qMMYI1q84m

— Jeremy Crawford (@JeremyECrawford) December 19, 2017