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The XML editor highlights incorrect matching tags when a block contains a self-closing tag.

The XML editor highlights incorrect matching tags when a block contains a self-closing tag.: a task in LegoFlow-SWE (Harbor dataset). Steps to reproduce: 1. Open an XML file with the following content: xml <anytag <anytag/ </anytag 2. Place the cursor on the closing tag </anytag (e.g., at the…

The task

**Steps to reproduce:** 1. Open an XML file with the following content: ```xml <anytag> <anytag/> </anytag> ``` 2. Place the cursor on the closing tag `</anytag>` (e.g., at the `start` position `{row: 2, column: 5}`). 3. Observe the tag matching highlighting (e.g., via `session.getMatchingTags(start)`).

Part of Lego-X/LegoFlow-SWE.