https://bugs.kde.org/show_bug.cgi?id=423334
Bug ID: 423334
Summary: Adding a "pure" tag group to another tag group doesn't
work as expected
Product: kphotoalbum
Version: GIT master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: XML backend
Assignee: kpab...@willden.org
Reporter: johan...@zarl-zierl.at
Target Milestone: ---
SUMMARY
When a "pure" tag group is added (i.e. a tag group that is not also used as a
tag on some image/video), and then this group is added to another group, this
information is lost if the compressed index.xml file format is used.
The problem is that the tag group is stored under the `<member-groups>` node in
index.xml, but not as an independent node below the respective `<Category>`
node. Therefore, no numeric id is assigned to the group and when it is added to
another group, an ephemeral numeric id for the group is stored.
When the index.xml file is read again, kphotoalbum throws away the invalid id.
STEPS TO REPRODUCE
1. Open kphotoalbum --demo
2. Open the annotation dialog for an image (e.g. "new_wave")
3. Right-click on tag "Esbjerg"
4. Click "Tag groups | Add this tag to a new tag group..."
5. Enter "test"
6. Right-click on tag "test"
7. Click "Tag groups | USA"
8. Save database and exit without deleting the demo database
OBSERVED RESULT
Examining the `index.xml` file, member group "USA" has a member "11", but the
category "Places" only has tags with ids 1 to 10.
The tag "test" is only a member group, but not a tag.
When loading this database in kphotoalbum, the tag group "test" is no longer a
member of group "USA".
EXPECTED RESULT
There should be a tag node in the category "Places" with name "test" and id 11.
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