Tracker: no OPT+CMD+CursorDown to change+close folder

[humdinger]

This is hrev46825.

Entering a folder and automatically closing its parent via OPT+CMD+CursorDown, only works if there's no other window open on the workspace. Otherwise, you just cycle through the open windows.

I guess hrev46796 is to blame.

[jscipione]

Fixed in hrev46829. Thanks for reporting.

hrev46796 didn't technically introduce this bug but made the problem much more likely to be triggered. S&T would have eaten that Tracker shortcuts before hrev46796, but you would have had to have more than one S&T group open, that is more than one set of 2 or more stacked windows. hrev46829 made it so that a single window is considered to be part of a S&T group for the purposes of cycling through the S&T groups, so you only needed 2 windows open to trigger the bug instead of 2 sets of S&T window groups.

I fixed this bug by making S&T trigger only when you have exactly option held (left or right or both) instead of when you have option held in addition to other modifiers. This works around the problem for Tracker and most other cases, but, there is still a problem where S&T will overwrite shortcuts defined by apps that use option+arrows, see #9431 for more info.