--- a/mercurial/util.py Sat Jan 22 16:15:40 2011 +0100
+++ b/mercurial/util.py Wed Jan 26 19:14:30 2011 +0100
@@ -913,6 +913,8 @@
# shares if the file is open.
fd = open(f)
nlink = nlinks(f)
+ if nlink < 1:
+ nlink = 2 # force mktempcopy (issue1922)
fd.close()
except (OSError, IOError):
nlink = 0