sha,message,author_date,committer_date,raw_author,raw_committer,repo,author,committer
a5881e105a02830d26f07e98177248d5910893da,"?_filter_column=col&_filter_op=isnull__1 redirect

if filter_op contains a __ the value is set to the right hand side.

e.g.

    ?_filter_column=col&_filter_op=isnull__1&_filter_value=x

Redirects to:

    ?col__isnull=1

Refs #86",2017-11-19T20:33:30Z,2017-11-19T20:33:30Z,13ae486343ea6454a93114c6f558ffea2f2c6874,13ae486343ea6454a93114c6f558ffea2f2c6874,107914493,9599,9599