Some options of launch command broken since v0.17.1

[wallace11]

Let me get straight to the point:

Ξ ~ → kitty --version          
kitty 0.17.1 created by Kovid Goyal
Ξ ~ → kitty @ launch --type=tab
Traceback (most recent call last):
  File "/usr/bin/../lib/kitty/kitty/boss.py", line 332, in _handle_remote_command
    response = handle_cmd(self, window, cmd)
  File "/usr/bin/../lib/kitty/kitty/remote_control.py", line 41, in handle_cmd
    ans = c.response_from_kitty(boss, window, PayloadGetter(c, payload))
  File "/usr/bin/../lib/kitty/kitty/rc/launch.py", line 75, in response_from_kitty
    opts = LaunchCLIOptions()
NameError: name 'LaunchCLIOptions' is not defined

name 'LaunchCLIOptions' is not defined

launch would work when launched via a keyboard shortcut, however some options are broken.
For instance, consider the following mapping:

map alt+r>h             launch --type=tab --tab-title=rpi ssh rpi

This would launch just fine, however the tab title is not set.

Hope this information is enough to hunt this bug down.