MDL-61348 quiz reports: fix incorrect groups averages
commit199b34b5d06812c3a3bcb7d30eb303d14d465685
authorTim Hunt <T.J.Hunt@open.ac.uk>
Mon, 5 Feb 2018 17:30:21 +0000 (5 17:30 +0000)
committerTim Hunt <T.J.Hunt@open.ac.uk>
Tue, 10 Apr 2018 16:12:04 +0000 (10 17:12 +0100)
treec77ecbd1183981dc486eb9a058471313ef9e5cb3
parent2d8ddc82396c264629cf2f81f20de768abefcb95
MDL-61348 quiz reports: fix incorrect groups averages

the averages were wrong if a user had mulitple enrolments in a course,
which can happen with some enrolment plugins.
mod/quiz/report/overview/overview_table.php
mod/quiz/report/overview/tests/report_test.php