$ git clone -n https://src.fedoraproject.org/rpms/spirv-tools.git /var/lib/mock/f41-build-846658-163165/root/chroot_tmpdir/scmroot/spirv-tools
Cloning into '/var/lib/mock/f41-build-846658-163165/root/chroot_tmpdir/scmroot/spirv-tools'...
$ git fetch origin 4c3e79a6f8ea4fb03cc5e205010d131b71cad801:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spirv-tools
 * [new ref]         4c3e79a6f8ea4fb03cc5e205010d131b71cad801 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c3e79a fix spirv-linking since llvm opaque ptrs