Razor editor compiles generic type constraints but throws errors

[cetinbas]

In a razor component, I can compile the following successfully, but the razor compiler generates superfluous errors:

@typeparam T where T : SomeBaseClass, new()

using a partial code-behind class doesn't work.

errors are
(1) : RZ1017 Unexpected literal following the 'typeparam' directive. Expected 'line break'.
(As many as T is used) : CS0246 The type or namespace name 'T' could not be found (are you missing a using directive or an assembly reference?)

T is set explicitly where the component is used.

.NET7, Visual Studio: 17.6.3, up-to-date as of 17th of June, 2023.

added git repo for reproducing:
https://github.com/cetinbas/GenericTypeConstraintError

As a workaround, I deleted the constraints from razor file but kept them in the code-behind. This way it throws no errors.

[chsienki]

Duplicate of #8572