$ git clone -n https://src.fedoraproject.org/rpms/kf5-kactivities-stats.git /var/lib/mock/f45-build-14780-463/root/chroot_tmpdir/scmroot/kf5-kactivities-stats
Cloning into '/var/lib/mock/f45-build-14780-463/root/chroot_tmpdir/scmroot/kf5-kactivities-stats'...
$ git fetch origin 223e4a4237b6f270bf024e50c42fa5cffb50252b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kactivities-stats
 * [new ref]         223e4a4237b6f270bf024e50c42fa5cffb50252b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 223e4a4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild