The current data will be lost. Repeat the action if this is okay

[Thomson, Martyn EDUC:EX]

Hi Listers,
Have a screen where user retrieves existing records for viewing/update/entry. They can enter "99" to go to a temporary field and submit a batch job to process the records saved/viewed.
If they attempt to backout from the temp field get message "The current data will be lost. Repeat the action if this is okay".

Why is this if they have not entered/changed any data or have already committed changes? ALTEREDRECORD is FALSE.
Is this just an automatic warning whenever "^" is entered?
Is there any way to suppress this msg when it's not relevant?

TIA for any advice.
Martyn
PH 7.10G1; OpenVMS Alpha V8.3, Oracle Rdb V7.2-311