!!! BUGFIX: Do not create 412 Status 'Precondition Failed' in standard compliance helper
!!! BUGFIX: Do not create 412 Status 'Precondition Failed' in standard compliance helper

As defined in RFC 7232 section 4.2 the http status 412 indicates that a precondition for a request failed
and that the requested operation was not performed. This only makes sense for non safe requests.

The bug in here is that Flow would still perform the operation but the standard compliance component
would add a precondition failed header and thus even raise the confusion level.

This change removes the code for the 412 status from the standard compliance helper.
If any application would want to use the status it should evaluate the precondition headers
and throw an exception with 412 status if needed.

neos/flow,neos/flow,neos/flow,neos/flow