no CDROM labels in udevadm info since 4.4.0-155.182

When I upgrade a xenial server with the kernel in proposed, my CDROM are not linked anymore under /dev/disk/by-label/.

My ext4 filesystems are present under /dev/disk/by-label/.

Before the upgrade:

uname -a
Linux eolebase 4.4.0-154-generic #181-Ubuntu SMP Tue Jun 25 05:29:03 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

# OpenNebula provides a context CDROM to configure the VM, the LABEL is reported
udevadm info /dev/sr0
P: /devices/pci0000:00/0000:00:01.1/ata1/host0/target0:0:0/0:0:0:0/block/sr0
N: sr0
L: -100
S: cdrom
S: disk/by-id/ata-QEMU_DVD-ROM_QM00001
S: disk/by-label/CONTEXT
S: disk/by-path/pci-0000:00:01.1-ata-1
S: disk/by-uuid/2019-07-08-09-47-08-00
S: dvd
E: DEVLINKS=/dev/dvd /dev/disk/by-path/pci-0000:00:01.1-ata-1 /dev/cdrom /dev/disk/by-uuid/2019-07-08-09-47-08-00 /dev/disk/by-label/CONTEXT /dev/disk/by-id/ata-QEMU_DVD-ROM_QM00001
E: DEVNAME=/dev/sr0
E: DEVPATH=/devices/pci0000:00/0000:00:01.1/ata1/host0/target0:0:0/0:0:0:0/block/sr0
E: DEVTYPE=disk
E: ID_ATA=1
E: ID_BUS=ata
E: ID_CDROM=1
E: ID_CDROM_DVD=1
E: ID_CDROM_MEDIA=1
E: ID_CDROM_MEDIA_CD=1
E: ID_CDROM_MEDIA_SESSION_COUNT=1
E: ID_CDROM_MEDIA_TRACK_COUNT=1
E: ID_CDROM_MEDIA_TRACK_COUNT_DATA=1
E: ID_CDROM_MRW=1
E: ID_CDROM_MRW_W=1
E: ID_FOR_SEAT=block-pci-0000_00_01_1-ata-1
E: ID_FS_APPLICATION_ID=GENISOIMAGE\x20ISO\x209660\x2fHFS\x20FILESYSTEM\x20CREATOR\x20\x28C\x29\x201993\x20E.YOUNGDALE\x20\x28C\x29\x201997-2006\x20J.PEARSON\x2fJ.SCHILLING\x20\x28C\x29\x202006-2007\x20CDRKIT\x20TEAM
E: ID_FS_LABEL=CONTEXT
E: ID_FS_LABEL_ENC=CONTEXT
E: ID_FS_SYSTEM_ID=LINUX
E: ID_FS_TYPE=iso9660
E: ID_FS_USAGE=filesystem
E: ID_FS_UUID=2019-07-08-09-47-08-00
E: ID_FS_UUID_ENC=2019-07-08-09-47-08-00
E: ID_FS_VERSION=Joliet Extension
E: ID_MODEL=QEMU_DVD-ROM
E: ID_MODEL_ENC=QEMU\x20DVD-ROM\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
E: ID_PATH=pci-0000:00:01.1-ata-1
E: ID_PATH_TAG=pci-0000_00_01_1-ata-1
E: ID_REVISION=2.5+
E: ID_SERIAL=QEMU_DVD-ROM_QM00001
E: ID_SERIAL_SHORT=QM00001
E: ID_TYPE=cd
E: MAJOR=11
E: MINOR=0
E: SUBSYSTEM=block
E: TAGS=:uaccess:systemd:seat:
E: USEC_INITIALIZED=2519001

After the upgrade:

uname -a
Linux eolebase 4.4.0-155-generic #182-Ubuntu SMP Tue Jul 2 14:43:15 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

# There is no more LABEL
udevadm info /dev/sr0
P: /devices/pci0000:00/0000:00:01.1/ata1/host0/target0:0:0/0:0:0:0/block/sr0
N: sr0
L: -100
S: cdrom
S: disk/by-id/ata-QEMU_DVD-ROM_QM00001
S: disk/by-path/pci-0000:00:01.1-ata-1
S: dvd
E: DEVLINKS=/dev/disk/by-id/ata-QEMU_DVD-ROM_QM00001 /dev/disk/by-path/pci-0000:00:01.1-ata-1 /dev/dvd /dev/cdrom
E: DEVNAME=/dev/sr0
E: DEVPATH=/devices/pci0000:00/0000:00:01.1/ata1/host0/target0:0:0/0:0:0:0/block/sr0
E: DEVTYPE=disk
E: ID_ATA=1
E: ID_BUS=ata
E: ID_CDROM=1
E: ID_CDROM_DVD=1
E: ID_CDROM_MEDIA=1
E: ID_CDROM_MRW=1
E: ID_CDROM_MRW_W=1
E: ID_FOR_SEAT=block-pci-0000_00_01_1-ata-1
E: ID_MODEL=QEMU_DVD-ROM
E: ID_MODEL_ENC=QEMU\x20DVD-ROM\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
E: ID_PATH=pci-0000:00:01.1-ata-1
E: ID_PATH_TAG=pci-0000_00_01_1-ata-1
E: ID_REVISION=2.5+
E: ID_SERIAL=QEMU_DVD-ROM_QM00001
E: ID_SERIAL_SHORT=QM00001
E: ID_TYPE=cd
E: MAJOR=11
E: MINOR=0
E: SUBSYSTEM=block
E: TAGS=:uaccess:systemd:seat:
E: USEC_INITIALIZED=1540484

# The LABEL is set on the filesystem
blkid /dev/sr0
/dev/sr0: UUID="2019-07-08-09-47-08-00" LABEL="CONTEXT" TYPE="iso9660"

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-155-generic 4.4.0-155.182
ProcVersionSignature: Ubuntu 4.4.0-155.182-generic 4.4.181
Uname: Linux 4.4.0-155-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Mon Jul 8 09:57:30 2019
InstallationDate: Installed on 2018-07-02 (370 days ago)
InstallationMedia: EOLE 2.6.2.1 "Xenial Xerus" - Release amd64 (20180702)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)