Resizing my swap partition on Debian encrypted lvm setup has disabled hibernate, how can I fix it?

I turns out that the problem was just that mkswap had changed the UUID of the swap file.

I found the old UUID with:

cat /etc/initramfs-tools/conf.d/resume 
RESUME=UUID=5caa6a65-ce03-4da5-aac2-9a9686c934d7

And then redid the mkswap command, forcing the original uuid:

swapoff -a
mkswap --uuid 5caa6a65-ce03-4da5-aac2-9a9686c934d7  /dev/mapper/dell--mini--vg-swap_1 
swapon -a

swap and hibernate now work fine.

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