MDL-40674 - Main menu's "sub menu" should open to the left in RTL mode (theme/clean , bootstrapbase)
MDL-41891 Theme: Bullets and Numbering are missing from lists, When in RTL mode (theme/clean)
MDL-44980 quiz statistics report : break down by variants failing

when there has only been one variant seen.
MDL-44981 quiz statistics report : Differentiating '0' and no response

in numeric questions.
MDL-44844 core: Fix custom menu navigation

Atto introduced a rule to hide all Nodes with the yui3-menu-hidden class
but this rule is too general and applies to non-atto content too.

As a result, when loading the menu and during the XY calculation, the
native Element.getBoundingClientRect() function was returning a bounding
box size of 0 because the Node was not visible and the node was being
hidden from view when it was later made visible.
MDL-44354 page: fixed ignored property when fetching a renderer
MDL-45040 editor-atto: selection reverts erroneously

Fixed an issue where selections reverted on toolbar button press when the last selection was made by dragging outside of Atto.
MDL-45038 modinfo: added property section_info::modinfo
MDL-40063 mod_quiz: replaced 'view' and 'view all' add_to_log calls with events
MDL-40063 mod_quiz: replaced 'editquestions' add_to_log call with an event
MDL-40063 mod_quiz: replaced 'addcategory' add_to_log call with an event
MDL-40063 mod_quiz: replaced 'delete attempt' add_to_log call with an event
MDL-40063 mod_quiz: replaced 'report' add_to_log call with an event
MDL-40063 mod_quiz: replaced 'review' add_to_log call with an event
MDL-40063 mod_quiz: replaced 'view summary' add_to_log call with an event
MDL-40063 mod_quiz: removed 'close attempt' add_to_log call
MDL-40063 mod_quiz: replaced 'edit override' add_to_log call with events
MDL-40063 mod_quiz: replaced 'delete override' add_to_log call with events
MDL-40063 mod_quiz: replaced 'continue attempt' add_to_log call with an event
MDL-40063 mod_quiz: replaced 'preview' add_to_log call with an event