$ git clone -n http://fedora.riscv.rocks:3000/rpms/glibc.git /var/lib/mock/f42-build-861835-170423/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/f42-build-861835-170423/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin 06c298c2766a8ee1a498b9a980cc2b7ec027126a:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/glibc
 * [new ref]         06c298c2766a8ee1a498b9a980cc2b7ec027126a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06c298c Move lp64d systemlink to filesystem