https://bugs.kde.org/show_bug.cgi?id=432048

            Bug ID: 432048
           Summary: XMP People/Face tags with no associated regions are
                    ignored by Digikam (Person Shown, MWG Face name, MS
                    People Tag)
           Product: digikam
           Version: 7.1.0
          Platform: Microsoft Windows
                OS: Microsoft Windows
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Faces-Maintenance
          Assignee: digikam-bugs-n...@kde.org
          Reporter: jose_oli...@hotmail.com
  Target Milestone: ---

Created attachment 135139
  --> https://bugs.kde.org/attachment.cgi?id=135139&action=edit
Sample image jpg and xmp file.

SUMMARY
Photos containing People Tags, MWG Face, and xmp-IPTC Person Shown In Image
with no associated face regions are not read as "People" nor "Tags"

STEPS TO REPRODUCE
1. Open attached test image in Digikam.
2. Ensure metadata is read by Digikam by selecting the image and from the menu
select Item | Reread Metadata from Selected Files.
3. Click on the "People" tab and search for any of the following names: "Joseph
Stallin", "Harry Truman".
4.  Click on the "Tags" tab and search for any of the following names: "Joseph
Stallin", "Harry Truman".

OBSERVED RESULT
- Names are not found.

EXPECTED RESULT
- Names should appear as Tags, and in Faces - albeit missing face region.
- When applicable and metadata is written back to file (Ex. Names should be
added to digikam tag list (Ex. People/<name>)), without any associated face
region.
- Such names should be treated as if they appear if they where added to the
digiKam:TagsList XMP block.

SOFTWARE/OS VERSIONS
Windows: 10

ADDITIONAL INFORMATION
- Related to BUG 431964.
- Refer to attached TestImage.xmp file and observe that for the image XMP
blocks for MS People Tags, MWG Faces and IPTC Person Shown in Image - "Joseph
Stallin", "Harry Truman" dot not have any associated face region assigned.
- Windows Photo Gallery as well as Microsoft Windows File Explorer will
display/search on People Tags without any associated face regions. 
- IPTC People Shown In Image tag list initially did not have any associated
face regions, the new updated 2019.1 IPTC Standard introduces Image Regions
which allow for face regions to be added. Per IPTC: "An IPTC Image Region can
frame people in an image, using associated metadata from other fields in the
standard attached to only that region, such as Person Shown."
https://iptc.org/news/announcing-the-iptc-photo-metadata-standard-2019-1-introducing-iptc-image-regions/

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