* helm-buffers.el: Use force-update with arg candidate.
(helm-buffer-revert-and-update,
helm-buffer-save-and-update): Do it.
* helm.el (helm-edit-current-selection-internal): Restore multiline property after editing.
(helm-mark-current-line): Fix separator-pos checked twice.
(helm-goto-source): Log error.
* helm.el (helm-edit-current-selection): Fix docstring.
Replace beginning-of-line in some place.
* helm.el (with-helm-default-directory): Don't execute body when dir is nil.