emulators/qemu-guest-agent: qemu-ga will not launch thaw operation

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Describe the bug
I'm trying to make a fsfreeze-hook script for OPNSense to have quiesce when backing up on KVM hosts.
I've noticed that qemu-ga will launch the fsfreeze-hook with freeze argument, but won't run it again with thaw argument until a new snapshot is made, hence rendering the script useless.

To Reproduce
Steps to reproduce the behavior:

1. Create the following file in /usr/local/etc/qemu/fsfreeze-hook

#!/bin/sh

case "$1" in
        "freeze")
                echo "FREEZE" >> /tmp/fsfreze
                ;;
        "thaw")
                echo "THAW" >> /tmp/fsfreze
                ;;
esac

3. Make the file executable
4. Stop qemu-guest-agent service
5. Run it manually in order to add -F option which will call the above script, eg run /usr/local/bin/qemu-ga -F -d -v -l /var/log/qemu-ga.log
6. On the KVM host, run virsh snapshot-create <domain> --disk-only --atomic --quiesce
7. Look into file /tmp/fsfreeze, it will contain FREEZE
8. Run the snapshot command again on KVM host
9. libvirt will complain with error: internal error: unable to execute QEMU agent command 'guest-fsfreeze-freeze': filesystems have already frozen
10. Look into file tmp/fsfreeze, it will contain

FREEZE
FREEZE
THAW

Expected behavior
At the end of the snapshot process, qemu-ga should call fsfreeze-hook script with thaw argument.
But it runs it only on second (failed) attempt.

Running the freeze/thaw hooks on other guests work.

Environment
OPNsense 24.7_9 (amd64)
qemu-guest-agent 9.0.1

Host:
AlmaLinux 9.4
libvirt-daemon-kvm 10.0.0-6.6
qemu-kvm 8.2.0-11