Comment 17 for bug 1774268

In my testing of Suzanne's branch, if the user setting is "" (empty string), the hold notify checkboxes will be checked in the patron editor, which is not what we want.

Here is a branch, based on Suzanne's, with an additional commit to rectify the problem:

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/jeffdavis/lp1774268-hold-notify-handle-empty-string