Timeout for load_multi_map with ID 0

[stefan-derissen]

** Describe issue **
Hello,

First of all: great module!!!

I've got the problem that I'm getting timeouts when sending command "load_multi_map" with map id 0. Other IDs (and all other commands) work. It's just the command with the payload "0".
Attached screenshots of the Command, the error in the debug window and the get_multi_maps output... Any ideas for this? Probably a bug?

Thanks a lot and happy new year ;-)

** Screens / Logs **


** Hardware / Software **
  - raspberry pi 3  

• Node Red 1.2.9 (REDMATIC)
• miio roborock node 2.3.2