Revert "org-capture: Do not save buffer when running `org-capture-finalize'"
This reverts commit b4422add3745c26ec3b2e11b8da425844b2e9d3d.
Revert the regression in Org capture + auto-saving behavior.
Ref: https://lists.gnu.org/r/emacs-orgmode/2018-09/msg00325.html