fix issue with previews not being displayed if filename contains apostrophe
fix issue with previews not being displayed if filename contains apostrophe

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