$ git clone -n http://fedora.riscv.rocks:3000/rpms/kernel.git /var/lib/mock/f38-build-730131-102336/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f38-build-730131-102336/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin e7cdc34c2ef7e7daeeecfbdbeb3c9f93301d5783:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/kernel
 * [new ref]             e7cdc34c2ef7e7daeeecfbdbeb3c9f93301d5783 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7cdc34c2 Merge remote-tracking branch 'up/f38' into f38-riscv64