id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,work_issues,upstream,reviewer,author,merged,dependencies,stopgaps
12540,Graph library passes almost surelly erroneous calls without an exception,brunellus,"jason, ncohen, rlm"," 1. Dense backend doesn't support edge labels, but add_edge(1, 2, 3) passes and behaves like add_edge(1, 2, None). (#12387)
 2. Adding a loop to a graph with allows_loops=False do nothing.
 3. Adding an already present edge to a graph with allows_multiedges=False do nothing.
 4. (Other?)

Is this the proper behavior?",defect,new,major,sage-5.10,graph theory,,,vbraun ncohen,,N/A,,,,,