If I have two versions of a font, customFont1.woff2 and customFont1.woff, and I list the woff2 version first followed by the woff version in the font declaration file, what happens when the browser supports both formats? Will it download both fonts or just the woff2 version? Does it prioritize downloading woff2 to avoid FOIT (Flash of Invisible Text), or does it still download both to determine the best format?