Regression: plasma 5 device manager fails to recognize ZIP drive as removable

I have an (IDE) Zip 100 drive in my system.

On Plasma 5, the device manager fails to show it unless "show all devices" or "show non removable devices only are selected". Namely, the device is not shown with the default "show removable devices only".

However, this device used to be correctly managed on KDE 4.

Furthermore, if I use the lshw command, the device is correctly reported as removable

*-disk
             description: SCSI Disk
             product: ZIP 100
             vendor: IOMEGA
             physical id: 0.1.0
             bus info: scsi@0:0.1.0
             logical name: /dev/sda
             version: 12.A
             size: 95MiB (100MB)
             capabilities: removable
             configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512
---
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
DistroRelease: Ubuntu 15.04
EcryptfsInUse: Yes
NonfreeKernelModules: nvidia
Package: plasma-workspace 4:5.3.0-0ubuntu1~ubuntu15.04~ppa1 [origin: LP-PPA-kubuntu-ppa-backports]
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
Tags: vivid third-party-packages
Uname: Linux 3.19.0-18-generic x86_64
UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

_MarkForUpload: True