fix embed conversion from editor2 to editor3 (#3595)
fix embed conversion from editor2 to editor3 (#3595)


superdesk/superdesk-client-core,superdesk/superdesk-client-core,petrjasek/superdesk-client-core,petrjasek/superdesk-client-core,pavlovicnemanja/superdesk-client-core,petrjasek/superdesk-client-core,superdesk/superdesk-client-core,pavlovicnemanja/superdesk-client-core,superdesk/superdesk-client-core,pavlovicnemanja/superdesk-client-core,superdesk/superdesk-client-core,pavlovicnemanja/superdesk-client-core,pavlovicnemanja/superdesk-client-core,petrjasek/superdesk-client-core,petrjasek/superdesk-client-core