Auto-closing void elements in C# blocks does not work as epected

[NTaylorMullen]

Note: This looks like a 17.3 regression

[timheuer]

Adding some variations that seem like same issue?

[NTaylorMullen]

@timheuer ya that one about div is a Razor compiler issue surprisingly: https://github.com/dotnet/razor-tooling/issues/7608

Gist is that the compiler is matching your outer div with the nested one even though it's wrapped in a C# block

[davidwengier]

The issue here is in the AutoClosingTagOnAutoInsertProvider but the root cause is we're getting back odd answers when we ask the compiler for the owner of the position in the document. Perhaps we could experiment with asking for the owner at the position before the close angle, as I believe we currently ask for the position after. Not sure what would break here though, so I would recommend time-boxing this one. We can revisit after the compiler fixes the ownership system, which is on the cards.

[davidwengier]

This doesn't repro any more, probably fixed by https://github.com/dotnet/razor/pull/8979 since that was the intent of the new API 😁