Description of problem:
Cockpit [1] storage tests are failing on fedora-34 because Vendor/Model/Id properties have changed, namely they now contain a x20x20x20x20 suffix. 

Version-Release number of selected component (if applicable):
udisks2-2.9.2-1.fc34.x86_64

(It works as expected with udisks2-2.9.1-2.fc33.x86_64)

How reproducible:
Always

Steps to Reproduce:
1. Prepare a QEMU VM and attach some qcow2 images 
2. Notice in udisksctl output for the drives corresponding to the attached images the above mentioned problematic properties 

Our test VM's disk setup look like this: 

# lsblk -S
NAME HCTL       TYPE VENDOR   MODEL          REV SERIAL  TRAN
...
sdc  2:0:2:2    disk QEMU     QEMU_HARDDISK 2.5+ DISK3   
...

When looking at the udisks data the Id, Vendor, Model contain x20x20x20x20 suffix. 

(output copied from udisksctl dump)

  org.freedesktop.UDisks2.Drive:
    CanPowerOff:                false
    Configuration:              {}
    ConnectionBus:              
    Ejectable:                  false
    Id:                         QEMUx20x20x20x20-QEMUx20HARDDISKx20x20x20-DISK3
    Media:                      
    MediaAvailable:             true
    MediaChangeDetected:        true
    MediaCompatibility:         
    MediaRemovable:             false
    Model:                      QEMUx20HARDDISKx20x20x20
    Optical:                    false
    OpticalBlank:               false
    OpticalNumAudioTracks:      0
    OpticalNumDataTracks:       0
    OpticalNumSessions:         0
    OpticalNumTracks:           0
    Removable:                  false
    Revision:                   2.5+
    RotationRate:               -1
    Seat:                       seat0
    Serial:                     DISK3
    SiblingId:                  
    Size:                       52428800
    SortKey:                    01hotplug/1614850723221287
    TimeDetected:               1614850723221287
    TimeMediaDetected:          1614850723221287
    Vendor:                     QEMUx20x20x20x20