minor fix to clonset to not draw 3MB+ clones
minor fix to clonset to not draw 3MB+ clones

Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-draw