Added test case about deleting a group with special characters
Added test case about deleting a group with special characters

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