$ git clone -n https://src.fedoraproject.org/rpms/kf6-kio.git /var/lib/mock/f40-build-2424208-60595/root/chroot_tmpdir/scmroot/kf6-kio
Cloning into '/var/lib/mock/f40-build-2424208-60595/root/chroot_tmpdir/scmroot/kf6-kio'...
$ git fetch origin 5d4ea2e445c7e315854df2d19cd461fbf479518b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kio
 * [new ref]         5d4ea2e445c7e315854df2d19cd461fbf479518b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d4ea2e Rebuild (qt6)