Update git submodules
- Update extensions/Quiz from branch 'wmf/1.32.0-wmf.19' to 7b7e67e5ff86be59647806c9af3831cbb2d10af5
- Fix shuffleAnswers infinite loop
The check for $j already being present in $order should have had a space prepended instead of an empty string. Without the space, attempting to insert index 0 when index 10 has already been inserted will fail, causing the loop to continue.
With the space added, it still would have been inefficient, with an indeterminate running time averaging O(N^2). A correct array shuffling algorithm like shuffle() only requires O(N) time.
Bug: T203628 Change-Id: I921e0fa647a545567031d4d0eb2b7b7e59895965
- Fix shuffleAnswers infinite loop