fix: restore foris config from snapshots

Hotfixes https://gitlab.nic.cz/turris/turris-os-packages/-/issues/657

changed milestone to %Turris OS 5.1.1

added Bug High labels

mentioned in merge request turris-build!245

mentioned in merge request !508 (merged)

Updater had removed or truncated the config file, right? Any most recent non empty config file should be the last working state, right?

This "fix" is quite elegant solution.

I will approve it ahead as the script looks ok and I suggest only some "typos" and formatting trifles.

approved this merge request

assigned to @kkoci and unassigned @vmyslivec

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• 5d6460d4 - Apply 2 suggestion(s) to 1 file(s)

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added 6 commits

• 5d6460d4...28288918 - 5 commits from branch master
• c762c78b - fix: restore foris config from snapshots

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added 1 commit

• 05b0708f - fixup! fix: restore foris config from snapshots

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marked as a Work In Progress from 05b0708f

assigned to @vmyslivec and unassigned @kkoci

assigned to @kkoci and unassigned @vmyslivec

added 1 commit

• 4639ad65 - fix: restore foris config from snapshots

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merged

unmarked as a Work In Progress