socat-1.7.3.0-2 fork process sometimes lingers

[Ray Satiro <raysatiro at yahoo dot com>]

socat-1.7.3.0-2
Cygwin 2.0.4(0.287/5/3)
Windows 7 x64 SP1

Since upgrading socat today I've noticed that when I CTRL+C to terminate 
it sometimes the spawned process won't terminate. For example open two 
Cygwin terminals and:

In one:
socat tcp-listen:8080,reuseaddr,fork -

And then in the other:
nc localhost 8080

In the one where socat is running CTRL+C. It will appear to end but 
sometimes the spawned process lingers. When that happens nc will not 
terminate either and the connection still shows as established (even 
though the parent process which supposedly held the connection has 
ended). This is not exclusive to nc I have this same problem with the 
client applications I am using to connect to socat. They think the 
connection is still established so they won't end.

It may take a couple of tries to reproduce. I can reproduce about 20% of 
the time.

I cannot reproduce using the socat.exe from socat-1.7.2.4-1.

The cygcheck has too much personal information but I have attached the 
package versions section.

Attachment: package_versions.txt
Description: Text document

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