: append all of the commits represented by *ref* to *dest* as new
commits. If *ref* names a directory/tree, append a new commit for
that tree. If *dest* is not specified and *ref* names a save or
branch, set *dest* to the *ref* branch name. If *dest* is not
specified and *ref* names a tag, use the same name for *dest*.
: append all of the commits represented by *ref* to *dest* as new
commits. If *ref* names a directory/tree, append a new commit for
that tree. If *dest* is not specified and *ref* names a save or
branch, set *dest* to the *ref* branch name. If *dest* is not
specified and *ref* names a tag, use the same name for *dest*.