Running "Searge" as the command in the command block set the previous output as "#itzlipofutzli"

The bug
Running "Searge" as the command in the command block set the previous output as #itzlipofutzli
What I have expected
It will set the previous output Unknown command at position 0: <--[HERE]
What actually happened
It set the previous output as #itzlipofutzli
How to reproduce

1. Give yourself a command block.
2. Enter "Searge" on Console Command.
3. Power it.
4. It set the previous output as #itzlipofutzli.

Code Analysis
Code analysis by Hayden Wong can be found in the bottom.