By Kristen Wong How do you know if it’s a messy break-up? If one party donates the other party’s clothes to a Goodwill afterward. Former Oregon State coach Jonathan Smith’s school-issued gear was spotted by a fan at a Goodwill store at an undisclosed location earlier this week. And it wasn’t just one or two crewnecks or quarter-zips—it looked like his whole wardrobe. A TikTok user recently posted a video of himself rummaging through an entire section of Beavers-branded apparel at a Goodwill. Many articles of clothing had Smith’s full name or initials printed on the tag, leaving no little doubt…