Merge branch 'maint'

* maint:
  GIT 1.6.3.1
  Revert "checkout branch: prime cache-tree fully"

Documentation/RelNotes-1.6.3.1.txt

@@ -4,9 +4,7 @@ GIT v1.6.3.1 Release Notes
 Fixes since v1.6.3
 ------------------
 
---
-exec >/var/tmp/1
-O=v1.6.3
-echo O=$(git describe maint)
-git shortlog $O..maint
-
+* "git checkout -b new-branch" with a staged change in the index
+  incorrectly primed the in-index cache-tree, resulting a wrong tree
+  object to be written out of the index.  This is a grave regression
+  since the last 1.6.2.X maintenance release.