diff mercurial/copies.py @ 31426:43a7dfbead0c

parsers: handle refcounting of "parents" consistently Py_None can be refcounted like any other Python object. So do that.
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 13 Mar 2017 17:49:13 -0700
parents 5a909a8098a1
children bd872f64a8ba
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