--- a/mercurial/config.py	Thu Jan 28 22:45:04 2010 -0600
+++ b/mercurial/config.py	Thu Jan 28 23:13:10 2010 -0600
@@ -73,10 +73,10 @@
     def parse(self, src, data, sections=None, remap=None, include=None):
         sectionre = re.compile(r'\[([^\[]+)\]')
         itemre = re.compile(r'([^=\s][^=]*?)\s*=\s*(.*\S|)')
-        contre = re.compile(r'\s+(\S.*\S)')
+        contre = re.compile(r'\s+(\S|\S.*\S)\s*$')
         emptyre = re.compile(r'(;|#|\s*$)')
         unsetre = re.compile(r'%unset\s+(\S+)')
-        includere = re.compile(r'%include\s+(\S.*\S)')
+        includere = re.compile(r'%include\s+(\S|\S.*\S)\s*$')
         section = ""
         item = None
         line = 0

--- a/mercurial/copies.py	Thu Jan 28 22:45:04 2010 -0600
+++ b/mercurial/copies.py	Thu Jan 28 23:13:10 2010 -0600
@@ -154,7 +154,7 @@
                 break # no merge needed, quit early
             c2 = ctx(of, m2[of])
             cr = related(oc, c2, ca.rev())
-            if of == f or of == c2.path(): # non-divergent
+            if cr and (cr.path() == f or cr.path == c2.path()): # non-divergent
                 copy[f] = of
                 of = None
                 break

--- a/tests/test-hgrc	Thu Jan 28 22:45:04 2010 -0600
+++ b/tests/test-hgrc	Thu Jan 28 23:13:10 2010 -0600
@@ -19,5 +19,9 @@
 echo '  x = y' >> $HGRCPATH
 hg version 2>&1 | sed -e "s|$HGRCPATH|\$HGRCPATH|"
 
+python -c "print '[foo]\nbar = a\n b\n c \n  de\n fg \nbaz = bif cb \n'" \
+    > $HGRCPATH
+hg showconfig foo
+
 echo '%include /no-such-file' > $HGRCPATH
 hg version 2>&1 | sed -e "s|$HGRCPATH|\$HGRCPATH|"

--- a/tests/test-hgrc.out	Thu Jan 28 22:45:04 2010 -0600
+++ b/tests/test-hgrc.out	Thu Jan 28 23:13:10 2010 -0600
@@ -7,4 +7,6 @@
 bundle.mainreporoot=.../foobar
 paths.default=.../foo%bar
 hg: config error at $HGRCPATH:2: '  x = y'
+foo.bar=a\nb\nc\nde\nfg
+foo.baz=bif cb
 hg: config error at $HGRCPATH:1: cannot include /no-such-file (No such file or directory)