Affects Version/s: 3.1.10, 3.2.7
Fix Version/s: None
Affected Branches:MOODLE_31_STABLE, MOODLE_32_STABLE
This is basically a copy of https://tracker.moodle.org/browse/MDL-23273. The bug is marked as fixed but it is present in 3.1 and 3.2.
To reproduce the bug:
1.create a new course or use an existing one
2.add item 'choice' with defaults values excpet the following settings:
Limit the number of responses allowed = enable
some choices where limit = 1
Restrict answering to this time period = yes
Publish results = always show results to students
privacy of results = publish full results, showing names and their choices
group mode = separate groups
3.login at 2 different PCs with different student account
4.select same choice and hit 'save my choice' synchronously
As you can see in the attachment, choosing a limited choice is possible. We have received some complaints by teachers using this tool. They report that (somehow) this effect happens quite often, especially when tight time period is enabled.