fix filecache with MDB2
fix filecache with MDB2

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