auto find old/previous collection when diffing, using build_config name in the query to avoid mixing results between different configs (eg. myvariant hg19/hg38, mygene gene/allspecies)
auto find old/previous collection when diffing, using build_config name
in the query to avoid mixing results between different configs
(eg. myvariant hg19/hg38, mygene gene/allspecies)

biothings/biothings.api,biothings/biothings.api