warnings of assignment side effects now ignore duplicate/empty keys, because correspondent warnings are already displayed upon entry
warnings of assignment side effects now ignore duplicate/empty keys, because correspondent warnings are already displayed upon entry


bartsch-dev/jabref,tschechlovdev/jabref,Braunch/jabref,mairdl/jabref,shitikanth/jabref,shitikanth/jabref,bartsch-dev/jabref,sauliusg/jabref,obraliar/jabref,zellerdev/jabref,motokito/jabref,oscargus/jabref,grimes2/jabref,Siedlerchr/jabref,sauliusg/jabref,shitikanth/jabref,ayanai1/jabref,Mr-DLib/jabref,jhshinn/jabref,motokito/jabref,mairdl/jabref,Braunch/jabref,JabRef/jabref,obraliar/jabref,zellerdev/jabref,oscargus/jabref,mredaelli/jabref,Braunch/jabref,ayanai1/jabref,oscargus/jabref,tschechlovdev/jabref,tschechlovdev/jabref,obraliar/jabref,grimes2/jabref,grimes2/jabref,ayanai1/jabref,zellerdev/jabref,ayanai1/jabref,bartsch-dev/jabref,oscargus/jabref,JabRef/jabref,tobiasdiez/jabref,motokito/jabref,shitikanth/jabref,shitikanth/jabref,mredaelli/jabref,jhshinn/jabref,mredaelli/jabref,obraliar/jabref,motokito/jabref,motokito/jabref,jhshinn/jabref,Mr-DLib/jabref,Braunch/jabref,Siedlerchr/jabref,grimes2/jabref,jhshinn/jabref,bartsch-dev/jabref,Mr-DLib/jabref,mairdl/jabref,Mr-DLib/jabref,sauliusg/jabref,tobiasdiez/jabref,Siedlerchr/jabref,Siedlerchr/jabref,mredaelli/jabref,bartsch-dev/jabref,JabRef/jabref,obraliar/jabref,Braunch/jabref,oscargus/jabref,sauliusg/jabref,Mr-DLib/jabref,zellerdev/jabref,mredaelli/jabref,zellerdev/jabref,tobiasdiez/jabref,grimes2/jabref,jhshinn/jabref,tobiasdiez/jabref,mairdl/jabref,tschechlovdev/jabref,tschechlovdev/jabref,ayanai1/jabref,JabRef/jabref,mairdl/jabref