src/vs/workbench/services/keybinding/common/keymapInfo.ts/KeymapInfo/update
class KeymapInfo:	update(other: KeymapInfo) {
		this.layout = other.layout;
		this.secondaryLayouts = other.secondaryLayouts;
		this.mapping = other.mapping;
		this.isUserKeyboardLayout = other.isUserKeyboardLayout;
		this.layout.isUserKeyboardLayout = other.isUserKeyboardLayout;
	}