$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-pkgconfig.git /var/lib/mock/f41-build-840073-160507/root/chroot_tmpdir/scmroot/R-pkgconfig
Cloning into '/var/lib/mock/f41-build-840073-160507/root/chroot_tmpdir/scmroot/R-pkgconfig'...
$ git fetch origin f1818ee472a8fe1931b36429dba8ce26b0c6d4b8:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-pkgconfig
 * [new ref]         f1818ee472a8fe1931b36429dba8ce26b0c6d4b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1818ee Turn off bootstrap (riscv64)