Database fields displayed on the Tag results page

The usort function for selecting the field to be displayed on the Tag results page is backwards -  the least "important" field actually ends up at the top.

In mod/data/locallib.php
Final line in function data_get_tag_title_field
Change array_shift to array_pop

https://tracker.moodle.org/browse/MDL-57455?focusedCommentId=797720&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-797720