Fixes a seg fault caused by HepVector sigmas not being initialized in...
Fixes a seg fault caused by HepVector sigmas not being initialized in prepareUsigmas at line sigmas(i) = sqrt ( s2 );.
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Fixes a seg fault caused by HepVector sigmas not being initialized in prepareUsigmas at line sigmas(i) = sqrt ( s2 );.
mentioned in merge request atlas/atlasexternals!441 (merged)