Fix v2 backup crash when group master key is invalid - #14972

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loucass wants to merge 3 commits into

signalapp:mainfrom

loucass:fix/android-backup-v2-invalid-group-masterkey

Commits on Aug 30, 2026

Fix v2 backup NPE on invalid group master key
loucass
committed
d4b36d6

Commits on Aug 31, 2026

Fix backup crash on old attachments with null random
loucass
committed
877170f

Commits on Sep 1, 2026

Add KDoc for nullable next() in GroupArchiveExporter
loucass
committed
8db83a0