[LiveComponent] add empty request to help with live component tests

[daFish]

Q	A
Bug fix?	yes
New feature?	no
Issues	Fix #2177
License	MIT

This is an attempt to fix #2177 as now there is a session and a request.

[smnandre]

What i am not sure here is that tests are working in a lot of scenarios... i really would like to understand what is specific in your use case :|

[daFish]

I'm also still trying to understand the real cause. Looking at the current tests I get the impression, that they might not reflect a real world use case. But I might totally be wrong.

[smnandre]

My point is, if this is (as i kinda suppose) related to CSRF and security.. this may be fixed soon

See: #2251

[daFish]

👍🏻 I'm looking forward to #2251 being merged.

[mkrauser]

I've explained everything in #2177 (comment)

That PR would help when testing Components with Form using the ComponentWithFormTrait

[mkrauser]

I've tested this PR some more. It seems to only fix one issue. When I try to submit the form, the CSRF-Token is invalid.
It seems, that a new Session is created for the Submit-Request. The one generated in this PR is not used.

[daFish]

My point is, if this is (as i kinda suppose) related to CSRF and security.. this may be fixed soon

See: #2251

After testing #2251 and disabling CSRF on my form, I can confirm this solves my issue.