$ git clone -n https://gitee.com/etux/fedora-riscv64-kickstarts.git /var/lib/mock/f39-build-1666565-40786/root/chroot_tmpdir/fedora-riscv64-kickstarts
Cloning into '/var/lib/mock/f39-build-1666565-40786/root/chroot_tmpdir/fedora-riscv64-kickstarts'...
$ git fetch origin 5cd3337217dea5cd5294db6f00a2c00a55ad8e02:KOJI_FETCH_HEAD
From https://gitee.com/etux/fedora-riscv64-kickstarts
 * [new ref]         5cd3337217dea5cd5294db6f00a2c00a55ad8e02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cd3337 add f39 support