In short: Mortgage rates briefly fell below 6% before an oil shock reversed them. Even so, affordability gains over the past year remain largely intact. Households that did not buy or refinance a home during the mortgage rate dip might have missed a flash sale, but can still buy at a discount.  Mortgage rates back above 6% Both bond yields and mortgage rates spiked higher this week. While geopolitical risks can send investors toward safe assets like bonds, driving yields down, rising oil prices raise concerns about higher inflation, which sends yields up. Notably, the 30-year fixed mortgage rate, which had dipped below the 6% threshold, has moved back above it. What’s the impact on housing?  Despite this setback, affordability has quietly improved for the median-income household. Buying power is up about $30,000 compared to this time last year, as mortgage rates fell from the high 6% range to the low 6% range. While we’ve temporarily lost the psychological boost that comes with rates…