The Panasonic Leica Vario-Elmarit DG 12-60 f/2.8-4 (currently
unsupported) is incorrectly identified as an Olympus Zuiko Digital
12-60 f/2.8-4.

The EXIF data is clear in this matter.  Tag 0x201 of the makernotes
identifies each lens uniquely, Here output from imges taken with each
lens:

=== grog@eureka (/dev/pts/51) ~/Photos/20170509 71 -> exiftool -H 15097397.ORF | grep -i lens
0x0201 Lens Type                       : Unknown (2 30 10)
0x0202 Lens Serial Number              : 07DX6132475D
0x0204 Lens Firmware Version           : 1.010
0x020b Lens Properties                 : 0xc140
0x0403 Conversion Lens                 :
0xa432 Lens Info                       : 12-60mm f/2.8-4
0xa434 Lens Model                      : LEICA DG 12-60/F2.8-4.0
     - Lens ID                         : LEICA DG 12-60/F2.8-4.0
=== grog@eureka (/dev/pts/51) ~/Photos/20080908/orig 81 -> exiftool -H P9084295.ORF | grep -i lens
0x0201 Lens Type                       : Olympus Zuiko Digital ED 12-60mm F2.8-4.0 SWD
0x0202 Lens Serial Number              : 230033616
0x0204 Lens Firmware Version           : 1.100
0x020b Lens Properties                 : 0xc043
     - Lens ID                         : Olympus Zuiko Digital ED 12-60mm F2.8-4.0 SWD
=== grog@eureka (/dev/pts/51) ~/Photos/20080908/orig 82 -> exiftool -n -H P9084295.ORF | grep -i lens
0x0201 Lens Type                       : 0 31 00
0x0202 Lens Serial Number              : 230033616
0x0204 Lens Firmware Version           : 4352
0x020b Lens Properties                 : 49219
     - Lens ID                         : 0 31 00

Extracting, the type field for the Olympus is 0 31 0 (first number 0
stands for Olympus), and the Leica has 2 30 10 (initial 2 meaning
Leica/Panasonic).

More information at http://olypedia.de/Olympus_Makernotes and the file
Image-ExifTool-10.40/lib/Image/ExifTool/Olympus.pm in the exiftool
distribution.

I'm attaching two raw images which show the distinction.

Attachment(s):
15097397.ORF - https://support.dxo.com/attachments/token/CNc0v3vGjHMOZizAajEXrG7yl/?name=15097397.ORF
Leica-or-Oly.png - https://support.dxo.com/attachments/token/zHVjt3wttrPigQmWQVOiBtwrp/?name=Leica-or-Oly.png
P9084295.ORF - https://support.dxo.com/attachments/token/ihzkdZ5FP4aoqO7ZpYuRXTzbL/?name=P9084295.ORF