--- a/mercurial/commands.py	Mon Jul 17 07:43:15 2006 -0700
+++ b/mercurial/commands.py	Mon Jul 17 11:30:33 2006 -0500
@@ -128,13 +128,17 @@
     if not slowpath:
         # Only files, no patterns.  Check the history of each file.
         def filerevgen(filelog):
+            cl_count = repo.changelog.count()
             for i, window in increasing_windows(filelog.count()-1, -1):
                 revs = []
                 for j in xrange(i - window, i + 1):
                     revs.append(filelog.linkrev(filelog.node(j)))
                 revs.reverse()
                 for rev in revs:
-                    yield rev
+                    # only yield rev for which we have the changelog, it can
+                    # happen while doing "hg log" during a pull or commit
+                    if rev < cl_count:
+                        yield rev
 
         minrev, maxrev = min(revs), max(revs)
         for file_ in files:
@@ -3514,7 +3518,9 @@
         return inst.code
     except:
         u.warn(_("** unknown exception encountered, details follow\n"))
-        u.warn(_("** report bug details to mercurial@selenic.com\n"))
+        u.warn(_("** report bug details to "
+                 "http://www.selenic.com/mercurial/bts\n"))
+        u.warn(_("** or mercurial@selenic.com\n"))
         u.warn(_("** Mercurial Distributed SCM (version %s)\n")
                % version.get_version())
         raise

--- a/mercurial/context.py	Mon Jul 17 07:43:15 2006 -0700
+++ b/mercurial/context.py	Mon Jul 17 11:30:33 2006 -0500
@@ -39,21 +39,23 @@
 
     def parents(self):
         """return contexts for each parent changeset"""
-        p = self.repo.changelog.parents(self._node)
+        p = self._repo.changelog.parents(self._node)
         return [ changectx(self._repo, x) for x in p ]
 
     def children(self):
         """return contexts for each child changeset"""
-        c = self.repo.changelog.children(self._node)
+        c = self._repo.changelog.children(self._node)
         return [ changectx(self._repo, x) for x in c ]
 
     def filenode(self, path):
         node, flag = self._repo.manifest.find(self.changeset()[0], path)
         return node
 
-    def filectx(self, path):
+    def filectx(self, path, fileid=None):
         """get a file context from this changeset"""
-        return filectx(self._repo, path, fileid=self.filenode(path))
+        if fileid is None:
+            fileid = self.filenode(path)
+        return filectx(self._repo, path, fileid=fileid)
 
     def filectxs(self):
         """generate a file context for each file in this changeset's
@@ -77,10 +79,10 @@
 
         if self._id:
             # if given a changeset id, go ahead and look up the file
-            self._changeset = changectx(repo, self._id)
+            self._changeset = self._repo.changelog.read(self._id)
             node, flag = self._repo.manifest.find(self._changeset[0], path)
-            self._node = node
-            self._filelog = self.repo.file(self._path)
+            self._filelog = self._repo.file(self._path)
+            self._filenode = node
         elif self._fileid:
             # else be lazy
             self._filelog = self._repo.file(self._path)

--- a/mercurial/ui.py	Mon Jul 17 07:43:15 2006 -0700
+++ b/mercurial/ui.py	Mon Jul 17 11:30:33 2006 -0500
@@ -209,7 +209,7 @@
 
     def expandpath(self, loc, default=None):
         """Return repository location relative to cwd or from [paths]"""
-        if "://" in loc or os.path.exists(loc):
+        if "://" in loc or os.path.isdir(loc):
             return loc
 
         path = self.config("paths", loc)