* A complete 40 byte or abbreviated commit SHA-1 in hex.
* Any valid Git SHA-1 expression that resolves to a commit. See
- ``SPECIFYING REVISIONS'' in linkgit:gitrevisions[1] for details.
+ ``SPECIFYING REVISIONS'' in linkgit:gitrevisions[7] for details.
The special case of restarting an incremental import from the
current branch value should be written as:
If an `LF` or double quote must be encoded into `<path>` shell-style
quoting should be used, e.g. `"path/with\n and \" in it"`.
+Additionally, in `040000` mode, `<path>` may also be an empty string
+(`""`) to specify the root of the tree.
+
The value of `<path>` must be in canonical form. That is it must not:
* contain an empty directory component (e.g. `foo//bar` is invalid),