Git pull stuck when Trace2 target set to Unix Stream Socket

Hey folks,

I am trying to write a simple git trace2 event collector and I notice that when git doing git pull with trace events being sent to a unix stream socket, the entire operation halted.

Reproduce as follow: ``` cd git/git git config trace2.eventTarget af_unix:stream:/tmp/git_trace.sock git config trace2.eventBrief false (rm /tmp/git_trace.sock | ) && nc -lkU /tmp/git_trace.sock

# In a different terminal git pull # Pull stuck and never complete ```

This does not happen when you set eventBrief to true ``` git config trace2.eventBrief true ```

Worth to note that if eventTarget is a file instead of a socket, everything works fine.

Cheers, Son Luong.