$ git clone -n http://fedora.riscv.rocks:3000/rpms/llvm.git /var/lib/mock/f41-build-855692-167306/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/f41-build-855692-167306/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin 7b8806da392bae6b6d05313e17fcff3f45533726:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/llvm
 * [new ref]         7b8806da392bae6b6d05313e17fcff3f45533726 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b8806d Fix packaging and testsuite failures