$ git clone -n https://src.fedoraproject.org/rpms/snappy-java.git /var/lib/mock/f33-build-623885-67573/root/chroot_tmpdir/scmroot/snappy-java
Cloning into '/var/lib/mock/f33-build-623885-67573/root/chroot_tmpdir/scmroot/snappy-java'...
$ git reset --hard 887142bd63fd610a0207e82a996880390fc5bca8
HEAD is now at 887142b vacuum problematic files from upstream tarball