Fixed issue in TableColumnsTab where a false value of "Enable special fields" didn't deactivate the special field selection properly on start up.
Fixed issue in TableColumnsTab where a false value of "Enable special fields" didn't deactivate the special field selection properly on start up.

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