Many Crystal Palace fans are nervously asking whether Dougie Freedman negotiated a sell-on clause in the deal which saw Michael Olise join Bayern Munich. The France international has already put his name up in lights in Bavaria, scoring five goals while also providing three assists in six appearances under Vincent Kompany. Back in July, Bayern Munich managed to sign Olise for just £50.8m due to a release clause in his old contract at Selhurst Park. That now seems like a bargain for the Londoner – who is arguably a £100m talent. So, did Crystal Palace negotiate a sell-on clause in the deal whic…