$ git clone -n https://src.fedoraproject.org/rpms/xxhash.git /var/lib/mock/f33-build-632564-68180/root/chroot_tmpdir/scmroot/xxhash
Cloning into '/var/lib/mock/f33-build-632564-68180/root/chroot_tmpdir/scmroot/xxhash'...
$ git reset --hard c670a2f7c4d830a7adab45bd4e2c97b2ba4c5d3f
HEAD is now at c670a2f Add virtual Provide for xxhash-static in xxhash-devel