$ git clone -n https://src.fedoraproject.org/rpms/kf5-kactivities.git /var/lib/mock/f41-build-808988-146126/root/chroot_tmpdir/scmroot/kf5-kactivities
Cloning into '/var/lib/mock/f41-build-808988-146126/root/chroot_tmpdir/scmroot/kf5-kactivities'...
$ git fetch origin 78e769298f05ffa3604a164e672f95ec465c3841:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kactivities
 * [new ref]         78e769298f05ffa3604a164e672f95ec465c3841 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78e7692 5.116.0