Previously we assumed that a port of KDE Gear 24.02-beta1 will use Qt6.
So kde:6 was used to determine that the applications version is beta1.
However, not all applications will be ported in time of the release as
it seems, so we need to have a better way to select the version.
For now, the KDE Gear-ports can use (for beta1)
CATEGORIES=$main kde kde-applications kde-devel
resepectively (for stable version)
CATEGORIES=$main kde kde-applications
to get the proper DISTVERSION value and environment set up.
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