We have some people in AD whose records are 'contacts' and not 'users', and there is no email associated to them for this reason in their JIRA user account. If we were to add the email addresses directly into the JIRA db (by SQL) would they persist after the next AD sync (I am thinking the blank record in AD email address field might overwrite the manually entered data in the email address fields in JIRA). Looking for advice on the best way to do this and want to make sure the data persists after re-indexing and/or a JIRA restart, and future AD Sync's.