alt+F8 and arrows: vertical window resizing shrinks only
Scenario: Using window resizing shortcut Alt-F8 and arrows to adjust the bottom or top of the window.
Shrinking the window operates as expected. Expanding the window takes no effect.
Note: Shift+arrow can expand vertically, but is a much larger jump. (shift appears to snap to specific locations for all windows)
Environment: Fedora 29