$ git clone -n http://fedora.riscv.rocks:3000/rpms/mock-core-configs.git /var/lib/mock/f42-build-863014-171311/root/chroot_tmpdir/scmroot/mock-core-configs
Cloning into '/var/lib/mock/f42-build-863014-171311/root/chroot_tmpdir/scmroot/mock-core-configs'...
$ git fetch origin 97363b6af94261d53670eb8c07dc088daab83750:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/mock-core-configs
 * [new ref]         97363b6af94261d53670eb8c07dc088daab83750 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97363b6 Fix %patch syntax