Foreclosures are making a comeback in Minnesota. And this time, the fastest growth might be in homes located by shopping malls, smaller towns and docks at the lake — not those at the urban centers of the Twin Cities. Foreclosures in the first three months increased by 28 percent in Minnesota compared with the same period in 2009, according to a report released Tuesday. With 6,716 foreclosures statewide, the tally between January and March was the biggest quarterly number in Minnesota since 2008 — the state’s worst year for foreclosures, according to the report from HousingLink, a Minneapolis-based nonprofit that studies housing issues.