The case has already been escalated to development and they are investigating the issue and I'm awaiting their feedback.
I've received feedback from development in relation to this issue to state that they are planning a fix for the issue in Domino 10.0.1, and that it is included in an interim fix for Domino 10.
A technote is being written to highlight the issue.
They have also stated that they have closed our SPR and are investigating the issue under SPR JGRNB5LLD6