Description of problem:
It is possible to hibernate a system with `systemctl hibernate`, provided that swap space is properly configured. However, the system fails to restore its state on the next boot.

Version-Release number of selected component (if applicable):
systemd-248-2.fc34.x86_64
dracut-053-4.fc34.x86_64
kernel-5.11.12-300.fc34.x86_64

How reproducible:
Always.

Steps to Reproduce:
1. Install a system with a real swap partition on the disk.
2. Issue `systemctl hibernate` on the shell command line.
3. Power up the system.

Actual results:
The system comes up anew, losing all data that weren't saved before the hibernation. This happens even if I disable the zram based swap partition before hibernation.

Expected results:
The system state is restored.

Additional info:
Package versions, kernel command line (contains "resume=" parameter), partition layout.

[user@dhcp72 ~]$ rpm -q systemd dracut kernel
systemd-248-2.fc34.x86_64
dracut-053-4.fc34.x86_64
kernel-5.11.12-300.fc34.x86_64

[user@dhcp72 ~]$ cat /proc/cmdline 
BOOT_IMAGE=(hd0,msdos1)/vmlinuz-5.11.12-300.fc34.x86_64 root=UUID=c709e8cb-64f9-4d5c-b547-b39c7db78cc5 ro rootflags=subvol=root resume=UUID=2d295c17-12b8-438b-b9b9-21e0fabbd76f rhgb quiet

[user@dhcp72 ~]$ lsblk -f
NAME   FSTYPE FSVER LABEL                 UUID                                 FSAVAIL FSUSE% MOUNTPOINT
sda                                                                                           
├─sda1 ext4   1.0                         42bc1d7b-69b4-4154-91ec-69cf75949fbb  744,6M    17% /boot
├─sda2 swap   1                           2d295c17-12b8-438b-b9b9-21e0fabbd76f                [SWAP]
└─sda3 btrfs        fedora_localhost-live c709e8cb-64f9-4d5c-b547-b39c7db78cc5    4,4G    49% /home
sr0                                                                                           
zram0                                                                                         [SWAP]