$ git clone -n https://src.fedoraproject.org/rpms/kf5-kactivities.git /var/lib/mock/f40-build-787341-134746/root/chroot_tmpdir/scmroot/kf5-kactivities
Cloning into '/var/lib/mock/f40-build-787341-134746/root/chroot_tmpdir/scmroot/kf5-kactivities'...
$ git fetch origin cd880781f778b2bfa5fa74d911f8916b92fabdf6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kactivities
 * [new ref]         cd880781f778b2bfa5fa74d911f8916b92fabdf6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd88078 5.115.0