I can't say for certain but my (ample) gut feeling is that tests conducted to date will be honoured, owing to the ambiguity that appears to have pervaded this issue. It would be downright bl**dy minded to act in any other way.
I have first hand experience of this.
They deny the application and send it back for a new signature in section 13 of
SRG 1183 - which if you read it specifically states that the applicant meets licence issue requirements.
If said examiner refuses to sign (which has happened) then it has to go through to the CFE and policy to be approved - which makes it a considerable delay = bad news if your waiting to start an IR and don't have a EASA PPL or waiting to apply for jobs.
This issue has been around since April time so I don't see how most wouldn't know. However I know of one school on the South coast which ignores this - and then the examiners refuse to test.