1.78.1: conflicts with glib 2.79.0
Looks like new glib 2.79.0 generates .typelib and .gir files which are now build and installed by gobject-introspection 1.78.1.
From my gobject-introspection.spec files in which I was forced to add %exclude lines
%files
%{_libdir}/lib*.so.*
%{_libdir}/girepository-*/*.typelib
%exclude %{_libdir}/girepository-*/GLib-*.typelib
%exclude %{_libdir}/girepository-*/GModule-*.typelib
%exclude %{_libdir}/girepository-*/GObject-*.typelib
%exclude %{_libdir}/girepository-*/Gio-*.typelib
%files devel
%attr(755,root,root) %{_bindir}/g-ir-*
%{_datadir}/aclocal/*.m4
%{_datadir}/gir-*/*
%{_datadir}/gobject-introspection-*
%{_datadir}/gtk-doc/html/*
%{_includedir}/*
%{_libdir}/gobject-introspection
%{_libdir}/lib*.so
%{_libdir}/pkgconfig/*.pc
%{_mandir}/man1/*
%exclude %{_datadir}/gir-*/GLib-*.gir
%exclude %{_datadir}/gir-*/GModule-*.gir
%exclude %{_datadir}/gir-*/GObject-*.gir
%exclude %{_datadir}/gir-*/Gio-*.gir