Wells Fargo disappointed investors with its latest earnings, but don't let temporary headwinds scare you away.Wells Fargo (WFC -6.02%) recently reported its second-quarter earnings, and thanks to disappointing net interest income, the stock plunged by as much as 7% shortly after the announcement. That's a big move for a large-cap bank stock.While the interest income miss was definitely disappointing, it's important for investors to realize that this is a rock-solid financial institution that has done a grea ...