The link to this diff https://www.mediawiki.org/w/index.php?title=Topic:Sdjk2ce202ud1fl0&action=compare-post-revisions&topic_newRevision=se88c0gq7ldv2u0y
at (23:30, 25 March 2015) https://www.mediawiki.org/wiki/Special:Contributions/BanjoDog
Without ?debug=true i get just this line:
Exception encountered, of type "BadMethodCallException"
With ?debug=true I get:
Invalid value was provided for loading Flow content. Return to MediaWiki. [f56a7d94] 2015-03-25 23:42:12: Fatal exception of type "Flow\Exception\InvalidInputException"