XML attribute associated to wrong type from XSD

[Nerpson]

Issue Type: Bug

I created an XML schema containing a complexElement with two attributes. The first one is just a simple string, the second one has a custom simpleType inheriting from string but having an additional minLength=1 restriction.

When trying this schema, the first attribute is wrongly associated to the second's custom type.

You can easily reproduce this issue with the linked ZIP archive. It contains a simple schema and an XML file using it and having the described issue.

VSCode_XSD_Bug.zip

In test.xml you'll see that two errors are highlighted where only one should exist, on the Some_Restricted_Value attribute.

The helper popup even tells the wrong type.

When writing a value in the restricted attribute, both of the errors disappear.

VS Code version: Code 1.57.1 (507ce72, 2021-06-17T13:28:07.755Z)
OS version: Windows_NT x64 10.0.19043
Restricted Mode: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz (12 x 2592)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	31.82GB (16.19GB free)
Process Argv	--crash-reporter-id 911c2726-6c6e-4a5a-ae4b-433ecadb690e
Screen Reader	no
VM	0%

Extensions: none

A/B Experiments

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[aeschli]

The XML validation must come from an extension, as we don't provide that out-of-the-box.

Are you sure you have no extensions installed?

Maybe https://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml ?

[Nerpson]

Indeed, I disabled every extension to test it out but the "Reload required" was not shown to me for some reason. I'll redirect the issue to Red Hat.

[Nerpson]

See redhat-developer/vscode-xml#524 for people interested in this issue.