In very obscure situations we may write the free token back to the pipe.
commitece552ba84585ec3107af98086199b28616c5b87
authorpsmith <psmith>
Mon, 14 Nov 2011 00:18:38 +0000 (14 00:18 +0000)
committerpsmith <psmith>
Mon, 14 Nov 2011 00:18:38 +0000 (14 00:18 +0000)
tree18cdcc83e1c8cf5f6c313c1dfa9013665f026e80
parentd17759f068c2094371c46c0c1a5bca47d3963159
In very obscure situations we may write the free token back to the pipe.
Don't do that.  I couldn't come up with a repro case for this!
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