Notification override box sends email when checked

Greetings- I searched through the forum and did not see a similar topic: we have a page that sends emails when updates are made.
1. If the override page notification box is checked and then you uncheck it, make a update, BNFW will not send a notification email.
2. If the override page notification box is already unchecked and you make an update, BNFW will send an email.
The same thing happens in reverse
1. If the override page notification box is unchecked and you check it, make a update, BNFW will send a notification email.
2. If the override page notification box is already checked, and you make a update, BNFW will not send a notification email.
So it appears the first time you check or uncheck the override box, it will not respond as expected. However susequent calls for notifications (assuming no changes were made to the override box) will respond as expected.

Any ideas??