$ git clone -n https://src.fedoraproject.org/rpms/qt6.git /var/lib/mock/f42-build-868140-175939/root/chroot_tmpdir/scmroot/qt6
Cloning into '/var/lib/mock/f42-build-868140-175939/root/chroot_tmpdir/scmroot/qt6'...
$ git fetch origin 321578cdac0b36bdccda72084a29d2b9e60bc906:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6
 * [new ref]         321578cdac0b36bdccda72084a29d2b9e60bc906 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 321578c Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild