check if demeter chain has already been established, this fixes issue #332
check if demeter chain has already been established, this fixes issue #332

kminh/mockery,yeka/mockery,yeka/mockery,Big-Shark/mockery,kminh/mockery,Big-Shark/mockery,jenswiese/mockery,padraic/mockery,jenswiese/mockery,tfrommen/mockery,fhinkel/mockery,fhinkel/mockery,TiagoMaiaL/mockery,5outh/mockery,florianeckerstorfer/mockery,5outh/mockery,florianeckerstorfer/mockery,TiagoMaiaL/mockery,tfrommen/mockery