$ git clone -n http://fedora.riscv.rocks:3000/rpms/gcc.git /var/lib/mock/f42-build-868583-176180/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/f42-build-868583-176180/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin c6571e1511998bfbfb21b59b6213a75b64f10869:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/gcc
 * [new ref]         c6571e1511998bfbfb21b59b6213a75b64f10869 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6571e1 Merge remote-tracking branch 'up/main' into main-riscv64