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kotlinlang

I'm confused about:

```companion object {
        fun &lt;R&gt; TagConsumer&lt;R&gt;.kpis() {```
vs

```companion object {
        fun FlowContent.kpis() {```
I want to call this function:

a) from the DSL

b) when building an html fragment like this:

```fun render(): String {
        return buildString {
            appendHTML().kpis()
        }
    }```
I can make the FlowContent variation at least compile with:

```    fun render(): String {
        return buildString {
            appendHTML().div { 
                kpis()
            }
        }
    }```
... but it blows up in weird ways

well, specifically it blows up with:

```java.lang.IllegalArgumentException: Tag svg has invalid attribute name xmlns
	at kotlinx.html.stream.HTMLStreamBuilder.onTagStart(stream.kt:30)
	at kotlinx.html.consumers.DelayedConsumer.processDelayedTag(delayed-consumer.kt:59)
	at kotlinx.html.consumers.DelayedConsumer.onTagStart(delayed-consumer.kt:10)```
...however, this function rendered just fine when it was included in a whole page dsl. it's only as a fragment that it dies

or, with xmlns commented out:

```java.lang.IllegalStateException: You can't change tag attribute because it was already passed to the downstream
	at kotlinx.html.consumers.DelayedConsumer.onTagAttributeChange(delayed-consumer.kt:16)
	at kotlinx.html.impl.DelegatingMap.put(delegating-map.kt:27)
	at kotlinx.html.impl.DelegatingMap.put(delegating-map.kt:5)```
where, again, it was fine as part of the whole page

Hey, <@U050KPQT24R>. Could you log github issues with repro?