$ git clone -n http://fedora.riscv.rocks:3000/rpms/glibc.git /var/lib/mock/f42-build-865077-172791/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/f42-build-865077-172791/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin fc654e4d637b46318f28c70d267da8318f3b6cce:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/glibc
 * [new ref]         fc654e4d637b46318f28c70d267da8318f3b6cce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc654e4 Fix merge