id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
6093,[1/3]second fails as valid duration input,viboes,viboes,"[1/3]second

makes the code

seconds d;
cin >> d

fail at run-time because the singular form is not associated to the keywords for the form [N/D].

The correction is easy. Just to add a line to the scanned units the singular form in addition to the plural and the symbol. ",Bugs,closed,Boost 1.49.0,chrono,Boost 1.47.0,Problem,fixed,,