qmake6-bin has an undeclared file conflict. This may result in an
unpack error from dpkg.
The file /usr/bin/qmake6 is contained in the packages
* qmake6/6.8.2+dfsg-9+deb13u2 as present in trixie
* qmake6-bin/6.11.2+dfsg-7 as present in forky|unstable
These packages can be unpacked concurrently, because there is no
relevant Replaces or Conflicts relation. Attempting to unpack these
packages concurrently results in an unpack error from dpkg, because none
of the packages installs a diversion for the affected file.
Kind regards
Helmut Grohne