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.