Recognize another Firebird exception in dialect.is_disconnect()
Recognize another Firebird exception in dialect.is_disconnect()

epa/sqlalchemy,sandan/sqlalchemy,inspirehep/sqlalchemy,sandan/sqlalchemy,davidfraser/sqlalchemy,bootandy/sqlalchemy,zzzeek/sqlalchemy,inspirehep/sqlalchemy,276361270/sqlalchemy,j5int/sqlalchemy,halfcrazy/sqlalchemy,bdupharm/sqlalchemy,wfxiang08/sqlalchemy,alex/sqlalchemy,hsum/sqlalchemy,itkovian/sqlalchemy,EvaSDK/sqlalchemy,Cito/sqlalchemy,wujuguang/sqlalchemy,Cito/sqlalchemy,ThiefMaster/sqlalchemy,dstufft/sqlalchemy,WinterNis/sqlalchemy,brianv0/sqlalchemy,hsum/sqlalchemy,brianv0/sqlalchemy,276361270/sqlalchemy,Cito/sqlalchemy,davidjb/sqlalchemy,alex/sqlalchemy,wujuguang/sqlalchemy,pdufour/sqlalchemy,WinterNis/sqlalchemy,davidjb/sqlalchemy,EvaSDK/sqlalchemy,bootandy/sqlalchemy,pdufour/sqlalchemy,dstufft/sqlalchemy,itkovian/sqlalchemy,elelianghh/sqlalchemy,j5int/sqlalchemy,ThiefMaster/sqlalchemy,elelianghh/sqlalchemy,graingert/sqlalchemy,Akrog/sqlalchemy,Akrog/sqlalchemy,olemis/sqlalchemy,sqlalchemy/sqlalchemy,wfxiang08/sqlalchemy,robin900/sqlalchemy,monetate/sqlalchemy,robin900/sqlalchemy,graingert/sqlalchemy,monetate/sqlalchemy,alex/sqlalchemy,davidfraser/sqlalchemy,bdupharm/sqlalchemy,olemis/sqlalchemy,epa/sqlalchemy,halfcrazy/sqlalchemy