Two error messages on merge closed pull request

[aistomin]

I've made some mistakes when was talking to Rultor and noticed a behaviour that is not clear to me. Maybe it's an expected behaviour, would be nice if somebody could clarify it to me.

Pull request where problem occurred: aistomin/jenkins-sdk#182

Questions:

1. I sent Rultor two consiquent merge messages by mistake, why didn't Rultor just ignore the second message?
2. Ok, Rultor interpreted the second message as a command inside already merged PR, why he sent me two error messages "The pull request is closed already, so I can't merge it" and "I'm sorry, I don't understand you :( ". One message I think is enough :)

[alex-palevsky]

@yegor256 please pay attention to this issue (par.21)

[alex-palevsky]

@aistomin since there is no milestone yet I set it to "2.0"

[original-brownbear]

@alex-palevsky this depends on #917.

[alex-palevsky]

@alex-palevsky this depends on #917.

@original-brownbear ok, let's wait for #917

[original-brownbear]

@alex-palevsky this is postponed.

[alex-palevsky]

@alex-palevsky this is postponed.

@original-brownbear right, I added "postponed" label

[alex-palevsky]

@alex-palevsky this is postponed.

@original-brownbear right, I'll try to find someone else for this task