Rider doesn't support the `?.` syntax in bindings

[ZzZombo]

Describe the bug

This is not supported by Rider, and shows errors in the IDE, even though the program compiles fine.

To Reproduce

Example code:

<ComboBox
			ItemsSource="{Binding Choices}"
			DisplayMemberBinding="{Binding Person?.FullName}"
			SelectedValueBinding="{Binding .}"
			SelectedValue="{Binding Author}" />

Expected behavior

This code is not treated as having syntax errors.

Avalonia version

11.3.11

OS

No response

Additional context

No response

[MrJul]

JetBrains manages the Avalonia support in Rider, please upvote https://youtrack.jetbrains.com/issue/RSRP-500877/Avalonia-add-support-for-null-conditional-operator-in-bindings