https://logstash.wikimedia.org/app/kibana#/doc/logstash-*/logstash-2018.05.07/parsoid?id=AWM7GA5nVAdyMbafgUUy&_g=h@1251ff0
skwiki/Alessia_Cara
```
AssertionError: Found nested inserted dom-diff flags!
at Console.assert (console.js:95:23)
at Normalizer.processNode (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:594:12)
at Normalizer.processSubtree (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:552:11)
at Normalizer.processNode (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:601:9)
at Normalizer.processSubtree (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:552:11)
at Normalizer.processNode (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:601:9)
at Normalizer.processSubtree (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:561:12)
at Normalizer.processNode (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:601:9)
at Normalizer.processSubtree (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:561:12)
at Normalizer.processNode (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:601:9)
at Normalizer.normalizeDOM (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/normalizeDOM.js:622:14)
at WikitextSerializer.<anonymous> (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/src/lib/html2wt/WikitextSerializer.js:1416:26)
at next (native)
at tryCatchNext (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/node_modules/prfun/lib/index.js:783:28)
at continuer (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/node_modules/prfun/lib/index.js:800:24)
at callback (/srv/deployment/parsoid/deploy-cache/revs/d8d7b424aa0f8fc5028099168e3646c2f131212e/node_modules/prfun/lib/index.js:812:43)
```