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=46olks,

while entertaining myself with breaking threading I noticed that the way th=
e=20
threading (and html) options are handled really is rather confusing if not=
=20
plain wrong. What we curently have is a global threading, saved in=20

[Geometry]
nestedMessages

Per Folder, there is an additional setting which is an _override_ of the=20
gloabl setting. That means that kmheaders.cpp does:

bool threaded =3D mNested !=3D mNestedOverride=20

to figure out if the headers are threaded. Now, that means you actually hav=
e=20
to turn the per folder option _off_, if the global option is on, to get=20
threaded behaviour. Same for html. The gui tries to work around that and=20
partially fails, resulting in much fun with out of sync .sorted files (whic=
h=20
store the threading status also) and the infamous "threading actions out of=
=20
sync" bugs.

Now, I'd like to propose to change this to work as follows:
=2D the global option turns threading globally on or off
=2D if it is globally off, there are not threading options in the folder me=
nus
=2D it if is globally on, you can disable it on a per folder basis and=20
  additionally disable subject threading for this folder
=2D bool threaded =3D mThreaded && mFolderThreaded

Same for html. That would simplify things and get rid of some bugs as well.

Additionally I would propose to move the global threading option out of=20
geometry and into behaviour. Maybe it makes transition easier to just=20
introduce new options and have upgrade scripts.

Makes sense?

Till

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