$ git clone -n https://src.fedoraproject.org/rpms/kf6-ksvg.git /var/lib/mock/f42-build-863269-171569/root/chroot_tmpdir/scmroot/kf6-ksvg
Cloning into '/var/lib/mock/f42-build-863269-171569/root/chroot_tmpdir/scmroot/kf6-ksvg'...
$ git fetch origin bd50605a9495aa0355df6dfc963b227b2564e162:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-ksvg
 * [new ref]         bd50605a9495aa0355df6dfc963b227b2564e162 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd50605 Frameworks 6.9