Mutation inside of a TreeWalker causes the walker to exit

[matthewp]

This line:

template-instantiation/src/template-definition.ts

Line 61 in 05a1867

parentNode!.replaceChild(partNode, node);

causes the demo to break. The <footer> part does not update with the values.

I think the issue is probably that we can't replaceChild inside of the walker loop. Maybe the solution is to defer dom mutations until after the loop is complete.

[matthewp]

I was able to fix this by putting the mutation into a queue and running that queue after the while loop. Not sure if that is correct or not though. If acceptable I can send a PR over.