$ git clone -n http://fedora.riscv.rocks:3000/rpms/samba.git /var/lib/mock/f42-build-862266-170710/root/chroot_tmpdir/scmroot/samba
Cloning into '/var/lib/mock/f42-build-862266-170710/root/chroot_tmpdir/scmroot/samba'...
$ git fetch origin 3b35460e4ea94c16af7e05a224e252b80ff4a2a4:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/samba
 * [new ref]         3b35460e4ea94c16af7e05a224e252b80ff4a2a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b35460 Fix release