$ apt-cache showpkg 'liblibreofficekitgtk.so()(64bit)' Package: liblibreofficekitgtk.so()(64bit) Versions: Reverse Depends: Dependencies: Provides: Reverse Provides: libreofficekit-still 6.4.7.2-alt1:sisyphus+260240.300.4.3@1603576136 libreofficekit 7.0.1.2-alt2:sisyphus+259887.100.1.2@1602681375 That is, two packages provide a shared library that is not used by other packages. $ rpmsodiff \ Sisyphus/files/x86_64/RPMS/libreofficekit-still-6.4.7.2-alt1.x86_64.rpm \ Sisyphus/files/x86_64/RPMS/libreofficekit-7.0.1.2-alt2.x86_64.rpm |\ grep symbols 13 symbols removed 1 symbols added 18 symbols changed That is, these two libraries have incompatible ABIs. I suggest to stop this practice, e.g. by filtering out liblibreofficekitgtk.so from autogenerated provides.
LibreOffice-still-6.4.7.2-alt2 -> sisyphus: Sun Nov 08 2020 Andrey Cherepanov <cas@altlinux> 6.4.7.2-alt2 - Do not provide liblibreofficekitgtk.so (ALT #39219).