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Git commits in Moodle 3.5.2 by Charles Fulton
commit bfc047cef0a623541a5e3a0a7d633c87edd2847b Author: Charles Fulton <fultonc@lafayette.edu> Date: Fri, 29 Jun 2018 00:31:10 +0800 Tag: v3.5.2 MDL-62534 course formats: do not purge empty sections on upgrade