Following discussion on #evergreen (http://irc.evergreen-ils.org/evergreen/2015-02-23#i_158837), "might_have" doesn't end up producing the left join that is desired, so I've done as requested and pushed a revert to master, rel_2_6, and rel_2_7.
Following discussion on #evergreen (http:// irc.evergreen- ils.org/ evergreen/ 2015-02- 23#i_158837), "might_have" doesn't end up producing the left join that is desired, so I've done as requested and pushed a revert to master, rel_2_6, and rel_2_7.