$ git clone -n http://fedora.riscv.rocks:3000/rpms/gcc.git /var/lib/mock/f38-build-710114-93251/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/f38-build-710114-93251/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin 58e8404328619e798ef1eb253d049ddd7397a1ab:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/gcc
 * [new ref]         58e8404328619e798ef1eb253d049ddd7397a1ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58e8404 Bump release