make timestamp-handling in pipeline-state more robust
make timestamp-handling in pipeline-state more robust

matthiasn/lambdacd,cz8s/lambdacd,cz8s/lambdacd,flosell/lambdacd,cz8s/lambdacd,flosell/lambdacd,matthiasn/lambdacd,matthiasn/lambdacd,tobiasbayer/lambdacd,tobiasbayer/lambdacd,tobiasbayer/lambdacd,flosell/lambdacd