parents, one pointing at each of the two lines of development that
were merged.
-However, if the current branch is a descendant of the other--so every
-commit present in the one is already contained in the other--then Git
-just performs a "fast-forward"; the head of the current branch is moved
-forward to point at the head of the merged-in branch, without any new
-commits being created.
+However, if the current branch is an ancestor of the other--so every commit
+present in the current branch is already contained in the other branch--then Git
+just performs a "fast-forward"; the head of the current branch is moved forward
+to point at the head of the merged-in branch, without any new commits being
+created.
[[fixing-mistakes]]
Fixing mistakes
[[fixing-a-mistake-by-rewriting-history]]
Fixing a mistake by rewriting history
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If the problematic commit is the most recent commit, and you have not
yet made that commit public, then you may just
[[the-index]]
The index
------------
+---------
The index is a binary file (generally kept in `.git/index`) containing a
sorted list of path names, each with permissions and the SHA-1 of a blob