[Digikam-devel] [digikam] [Bug 315269] New: Tag "_Digikam_root_tag_" is handled strangely (almost like duplicated in hierachy) on importing existing collection

[Sven]

https://bugs.kde.org/show_bug.cgi?id=315269

            Bug ID: 315269
           Summary: Tag "_Digikam_root_tag_" is handled strangely (almost
                    like duplicated in hierachy)  on importing existing
                    collection
    Classification: Unclassified
           Product: digikam
           Version: unspecified
          Platform: Compiled Sources
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: Tags
          Assignee: digikam-devel at kde.org
          Reporter: sven-kdebug at geekbox.info

As my mysql db was nuked by digikam (was a beta, so no blame here) i was happy
to have most tags in my pictures - chosing this for robustness seems to have
been a good idea.

clearing the database and adding the collections again gives the fail.

I'd conclude that the TagsList format on import is different than the one that
is written on export.

When i move all my 4 1st level childs to the highest visible tag level,
selecting the visible _Digikam_root_tag_ still shows all my 20k pictures, if
sub-tags are selected to be viewn.

Reproducible: Always

Steps to Reproduce:
1. Create some nice tag hierarchy, with tagged pictures
2. make sure the tags are written to the pictures
3. import to new/fresh digikam 3.0.0 (same in the betas and -rc)
Actual Results:  
All Tags are a child of _Digikam_root_tag_ in the visible tag tree.

As all visible tags in the tree are already a child of _Digikam_root_tag_, this
is wrong and/or at least confusing. Trying to work within the new
_Digikam_root_tag_ fails aswell, as all future tags will be under two levels of
_Digikam_root_tag_
_Digikam_root_tag_,_Digikam_root_tag_,People,friends,tom

Expected Results:  
Digikam should know how itself wrote its internal tags to pictures, so when
imported its not broken.

running in latest version (3.0.0 tarball) - importing older pictures
tag example:
digikam(4699)/KEXIV2 KExiv2Iface::KExiv2::getXmpTagStringSeq: XMP String Seq (
Xmp.digiKam.TagsList ):  ("_Digikam_root_tag_/Places/amerika/usa/ft.
lauderdale")

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