Keybind override

Having trouble disabling a keybind

In my CONFIG

command.update {
  name = "Share: Page",
  key = "",
  mac = ""
}

also tried nil instead of "" without success

while this works fine

command.update {
  name = "Open Command Palette",
  key = "Mod-Shift-p",
  mac = "Mod-Shift-p"
}

related: Not possible to disable a command shortcut anymore? - #3 by ajain

thanks!