[rdiff-backup-users] Why using --force while restoring is dangerous?

[Filip Gruszczyński]

I have read in manual, that --force can be dangerous, when restoring
files from backup. I am using --force, when calling rdiff-backup in my
filesystem to restore a file. I can't yet remove it, because otherwise
it fails to restore file. Is it really dangerous or maybe I can keep
it?

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Filip Gruszczyński