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kotlinlang

I'm seeing an NPE in a supposedly <https://github.com/JetBrains/intellij-community/commit/0ee2f982b45821feee9b1206b83ecc3e3fec1243|non-nullable property> with IntelliJ IDEA 2025.1 (Ultimate Edition) Build #IU-251.23774.435:
```java.lang.NullPointerException: Cannot invoke "com.intellij.ui.treeStructure.Tree$ExpandImpl.isExpanded(int)" because "this.expandImpl" is null
	at com.intellij.ui.treeStructure.Tree.isExpanded(Tree.java:835)```

Could you please provide (DM is ok) stack trace of this NPE ?

Done. <https://youtrack.jetbrains.com/issue/IJPL-184686/Kotest-view-is-unusable|YouTrack>.

it is fixed, going to be backported to 2025.1.1