Remove tree-diff upper bound, closes #4593
Remove tree-diff upper bound, closes #4593

int-index/stackage,massysett/stackage,mrkkrp/stackage,Daniel-Diaz/stackage,spencerjanssen/stackage,clinty/stackage,jonschoning/stackage,simonmichael/stackage,athanclark/stackage,fpco/stackage,soenkehahn/stackage,fimad/stackage,asr/stackage,wereHamster/stackage,michalkonecny/stackage,iand675/stackage,stackbuilders/stackage