Change Details

**Steps to replicate the issue** (include links if applicable): I made a Google Doc with reproducible steps, you can see (and use it to copy/paste) here: https://docs.google.com/document/d/1nU2rYurrkOQ9HhEmJW_rEwXpDjPxmJIwVwoYkefJEHM/edit#heading=h.5r69lw7oycde (Problem #1) The steps are: * Create a Google Doc with headings * Make the headings "numbered" in the Google Doc * Copy the entire document (or even just the heading) to VisualEditor page **What happens?**: Visually, nothing, which was odd. The console has an error: ``` Uncaught Error: Cannot insert mwHeading even after closing all containing nodes (at index 2) ``` **What should have happened instead?**: Either strip the numbering, or translate the numbering to a preceding number (1. xxxx) ? Either way, this should at least not fail, and give some indicator to the user that something was off with the original text.

**Steps to replicate the issue** (include links if applicable): I made a Google Doc with reproducible steps, you can see (and use it to copy/paste) here: https://docs.google.com/document/d/1nU2rYurrkOQ9HhEmJW_rEwXpDjPxmJIwVwoYkefJEHM/edit#heading=h.whecslmaf5g3 (Problem #1) The steps are: * Create a Google Doc with headings * Make the headings "numbered" in the Google Doc * Copy the entire document (or even just the heading) to VisualEditor page **What happens?**: Visually, nothing, which was odd. The console has an error: ``` Uncaught Error: Cannot insert mwHeading even after closing all containing nodes (at index 2) ``` **What should have happened instead?**: Either strip the numbering, or translate the numbering to a preceding number (1. xxxx) ? Either way, this should at least not fail, and give some indicator to the user that something was off with the original text.

**Steps to replicate the issue** (include links if applicable): I made a Google Doc with reproducible steps, you can see (and use it to copy/paste) here: https://docs.google.com/document/d/1nU2rYurrkOQ9HhEmJW_rEwXpDjPxmJIwVwoYkefJEHM/edit#heading=h.5r69lw7oycdewhecslmaf5g3 (Problem #1) The steps are: * Create a Google Doc with headings * Make the headings "numbered" in the Google Doc * Copy the entire document (or even just the heading) to VisualEditor page **What happens?**: Visually, nothing, which was odd. The console has an error: ``` Uncaught Error: Cannot insert mwHeading even after closing all containing nodes (at index 2) ``` **What should have happened instead?**: Either strip the numbering, or translate the numbering to a preceding number (1. xxxx) ? Either way, this should at least not fail, and give some indicator to the user that something was off with the original text.