tree 23bb13d7d5525534c60fe7a15fa302dd3a409de6
parent e016d0bee8ca30f6a15fe64115a4c820e03c16fb
author vsmenon <vsmenon@gmail.com> 1510183935 -0800
committer Natalie Weizenbaum <nweiz@google.com> 1510183935 -0800

Avoid overwriting chain for trace if one exists (#37)