Why this function just decides to not call another function and do its thing instead?

[frame]

On Saturday, 17 September 2022 at 15:04:48 UTC, solidstate1991 
wrote:

> And then instead just decides that the `localName` and 
> `namespaceURI` pairs are not equal, and in those cases the 
> Visual Studio debugger doesn't detect any entering into any of 
> the `DOMString.equals` overrides, all while the debugger shows 
> those strings are equal.

`opEquals` probably was not called if an operand was null. It 
seems that `Attr.localName` can return null.