Keyboard shortcuts: Alt-number acts on layers in reverse order

[anonymous]

Hi. I'm using JOSM 9979 from Debian without any keyboard configuration changes. The "Keyboard shortcuts" says that Alt+1 is "Toggle visibility of layer: 1", Alt+2 is for layer 2 and so on. If the Layers window shows layers

AAA
BBB
CCC

then I observe Alt+1 affecting CCC, Alt+2 affecting BBB and Alt+3 affecting AAA, which is the opposite of how I expect it to work. Note that I can activate layers the way one would expect: Shift-A 1 activates AAA and so on. Thanks.