Merge branch 'STT-1502-warn-on-navigation-from-ppr-screen' into 'main'
STT-1502 added warning if navigating away from ppr page if any of the subforms are dirty
See merge request !893 (merged)
(cherry picked from commit d5e8a1f3)
f0c7828d added warning if navigating away from ppr page if any of the subforms is dirty