fixes</h2><ul><li><p>Fix a bug introduced by <a href=/v1.12/news/security/istio-security-2019-005>our October 8th security release</a> which incorrectly calculated HTTP header and body sizes (<a href=https://github.com/istio/istio/issues/17735>Issue 17735</a>).</p></li><li><p>Fix a minor bug where endpoints still remained in /clusters while scaling a deployment to 0 replica (<a href=https://github.com/istio/istio/issues/14336>Issue 14336</a>).</p></li><li><p>Fix Helm upgrade process to correctly update mesh