$ git clone -n https://src.fedoraproject.org/rpms/bind9-next.git /var/lib/mock/f39-build-1638598-40070/root/chroot_tmpdir/scmroot/bind9-next
Cloning into '/var/lib/mock/f39-build-1638598-40070/root/chroot_tmpdir/scmroot/bind9-next'...
$ git fetch origin de00aeb16a6ed4afc90f78c582a7027d739d5d3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bind9-next
 * [new ref]         de00aeb16a6ed4afc90f78c582a7027d739d5d3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de00aeb Update to 9.19.17 (#2232409)