By Tom Westbrook SINGAPORE (Reuters) – The euro was pinned near a 22-month low on Tuesday as war in Ukraine darkens Europe’s economic outlook, while commodity currencies took a breather in their weeks-long rally. The euro attempted a bounce in Asia, after six straight sessions of selling, but at $1.0859, it was not carried terribly far from Monday’s trough of $1.0806. The common currency is down 4% on the dollar since Russia launched what it calls a “special military operation” in Ukraine where fighting is showing no signs of abating. It flirted with parity on the Swiss franc on Monday for the…

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