message. Defaults to "refuse".
+
Another option is "updateInstead" which will update the working
-directory (must be clean) if pushing into the current branch. This option is
+tree if pushing into the current branch. This option is
intended for synchronizing working directories when one side is not easily
accessible via interactive ssh (e.g. a live web site, hence the requirement
that the working directory be clean). This mode also comes in handy when
developing inside a VM to test and fix code on different Operating Systems.
++
+By default, "updateInstead" will refuse the push if the working tree or
+the index have any difference from the HEAD, but the `push-to-checkout`
+hook can be used to customize this. See linkgit:githooks[5].
receive.denyNonFastForwards::
If set to true, git-receive-pack will deny a ref update which is