LP1889128 Confirm data loaded before Place Hold activated

LP1889128 Confirm data loaded before Place Hold activated

When changing users in the place hold form of the staff catalog, the
form resets itself and refreshes all of the user and bib, etc. data.
This patch ensures all data has been retrieved before the place hold
button is reactivated after changing the user.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Michele Morgan <mmorgan@noblenet.org>
Signed-off-by: Jane Sandberg <sandbej@linnbenton.edu>