John Beecher. | Photo by Mitchell Leff/Getty Images Not a memorable weekend for the Bruins affiliates, going a combined 1-4-0 last weekend. Over the course of a long season, every team is bound to take its licks. It just so happens that both Boston Bruins affiliates suffered setbacks on the same weekend. The Providence Bruins, still the top team in the Atlantic Division, lacked defensive prowess in two games last weekend. Providence escaped with a 6-5 win in overtime against the Charlotte Checkers (Florida Panthers) on Friday, only to surrender another handful of goals in a 5-1 loss to Rochester on Sunday. As for Maine, a measuring-stick weekend against the ECHL’s top team — the Idaho Steelheads (Dallas Stars) —…