great this gets tracked down.
One minor suggestion, a simple renaming:
Export... => Export as...
Save back => Export
this way, 'Export' resembles 'Save' as a one-click-action
and 'Export as...' parallels 'Save as'.
Additionally, the association between 'Save' and safe is kept consistent.
(Otherwise a user touching up a JPG might wonder why he is served a nag-screen
on closing the image - despite of having "saved back" before)
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