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Git commits in Moodle 2.1.5 by Henning Bostelmann
commit 6a9b5984bdf479f85bacfb13c79554b79438286b Author: Henning Bostelmann <henning.bostelmann@york.ac.uk> Date: Thu, 29 Dec 2011 01:47:22 +0800 Tag: v2.1.5 MDL-30031 Adaptive question behaviour: ignore invalid answers without penalty