Downgrade suggested if upgrade is required

[mdrmdrmdr]

My kernel: Linux raspberry 4.9.70-v7+

Command "BRANCH=next JUST_CHECK=1 rpi-update" gives the message "Firmware downgrade requested". I think function "compare_hashes" just checks on dates. Shouldn't it check on dates AND version?

Regarding the date, latest 4.14 in branch "next" ist older than latest 4.9 in branch "master". So a date only compare makes no sense here...

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[Started this accidentally @rpi-firmware...]

[lurch]

I think the only way to fix that would be to store the last-updated branch in e.g. .firmware_branch; and then JUST_CHECK would be able to display a more useful message if BRANCH doesn't match .firmware_branch, rather than just assuming it's doing a downgrade?
Not sure if that's worth it though, as (I think) the downgrade message will only be erroneously displayed the first time you switch branches.