Use the real username in preferences and magic cookie instead of case-insensitive user input. Fixes 4616.
Use the real username in preferences and magic cookie instead of case-insensitive user input. Fixes 4616.

sharidas/core,endsguy/server,owncloud/core,bluelml/core,xx621998xx/server,nextcloud/server,bluelml/core,bluelml/core,andreas-p/nextcloud-server,andreas-p/nextcloud-server,pmattern/server,nextcloud/server,endsguy/server,cernbox/core,pollopolea/core,lrytz/core,lrytz/core,cernbox/core,pollopolea/core,pmattern/server,pollopolea/core,andreas-p/nextcloud-server,phil-davis/core,whitekiba/server,bluelml/core,Ardinis/server,whitekiba/server,sharidas/core,jbicha/server,whitekiba/server,lrytz/core,endsguy/server,pixelipo/server,nextcloud/server,Ardinis/server,sharidas/core,bluelml/core,Ardinis/server,Ardinis/server,xx621998xx/server,lrytz/core,pollopolea/core,IljaN/core,xx621998xx/server,owncloud/core,pixelipo/server,cernbox/core,sharidas/core,sharidas/core,pmattern/server,pixelipo/server,michaelletzgus/nextcloud-server,whitekiba/server,michaelletzgus/nextcloud-server,IljaN/core,endsguy/server,jbicha/server,pmattern/server,pollopolea/core,jbicha/server,michaelletzgus/nextcloud-server,andreas-p/nextcloud-server,owncloud/core,Ardinis/server,pmattern/server,owncloud/core,pixelipo/server,cernbox/core,nextcloud/server,whitekiba/server,endsguy/server,pixelipo/server,xx621998xx/server,IljaN/core,andreas-p/nextcloud-server,owncloud/core,xx621998xx/server,jbicha/server,michaelletzgus/nextcloud-server,jbicha/server,cernbox/core,lrytz/core,IljaN/core,IljaN/core