Minimize shortcut (Alt+M) in comparing dialog is not available in 5.9.2
I'm used to pressing Alt+M when the Synchronization's comparing dialog appears, with new interface it's now a button with "_" glyph. However the keyboard shortcut Alt+M does not work anymore, I have to use mouse to click the icon.
Attached is is the dialog I'm talking about.
It minimizes if I press the button but not with Alt+M.