scipy/scipy — pull request #207 by lmwang9527 (2012-05-09 05:26:01+00:00)
Title: This commit fixes a bug introduced in commit 70a69ff7ba2f02531888cb4d48a5969effd2d502 in setting cons[ctype]['jac']

...['jac'] = None; should instead be cons[ctype]['jac'] = cjac