$ git clone -n http://fedora.riscv.rocks:3000/rpms/gcc.git /var/lib/mock/f42-build-868554-176162/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/f42-build-868554-176162/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin 71619a1b102358b72c63dac9fa18187e4bf0dc7b:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/gcc
 * [new ref]         71619a1b102358b72c63dac9fa18187e4bf0dc7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71619a1 Remove riscv_cmo.h header