Testing version: Mac Version 2.0 (10816)
What were you doing: navigating in list using keyboard shortcuts
What feature did you use: ordered and unordered lists; cmd + arrow key shortcut
What happened: if the cursor is on the first line of list item, it behaves as expected. On any other line of the list item, cmd + right arrow key navigates to the end of the line, but cmd + left arrow key navigates to the beginning of the entire list item/paragraph, and not the beginning of the line.
What did you expect to happen: the cmd + right or left arrow key shortcut should jump the cursor to the end or the beginning of the line, regardless of which line in a paragraph the cursor is in. This works in text that is not contained in a list. (Jumping to the end/beginning of the entire paragraph is already covered by the option + up and down arrow keys shortcut)