MudChip OnClick handler broke in 5.1.5: NullReferenceException is thrown when OnClick is set

[mikequ-taggysoft]

Bug type

Component

Component name

MudChip

What happened?

This was working fine as of 5.1.4, but 5.1.5 broke it: whenever OnClick is set in MudChip, the exception would be thrown.

See TryMudBlazor.

Expected behavior

Should work.

Reproduction link

https://try.mudblazor.com/snippet/cYGPlkOFPzuDhyUv

Reproduction steps

1. Add an OnClick handler to MudChip.
2. Run.
   ...

Relevant log output

blazor.server.js:21 [2021-10-01T04:09:45.960Z] Error: System.NullReferenceException: Object reference not set to an instance of an object.
at MudBlazor.MudChip.get_Classname()
at MudBlazor.MudChip.BuildRenderTree(RenderTreeBuilder __builder)
at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()

Version (bug)

5.1.5

Version (working)

5.1.4

What browsers are you seeing the problem on?

Chrome

On what operating system are you experiencing the issue?

Windows

Pull Request

• I would like to do a Pull Request

Code of Conduct

• I agree to follow this project's Code of Conduct

[JonBunator]

Duplicate of #2866