LP1277556 Fast Item Add no longer opens record after copy is created

Altered save_attempt to handle undefined and true cases for replace_on_complete
When fastItemAdd is not used, replace_on_complete is undefined
When it is used, and successful, replace_on_complete will be set to true
then we need it to execute result.on_complete()

Signed-off-by: Blake Henderson <blake@mobiusconsortium.org>
Signed-off-by: Remington Steed <rjs7@calvin.edu>
Signed-off-by: Ben Shum <bshum@biblio.org>