Reenable partial-semigroup
Reenable partial-semigroup
mrkkrp/stackage,soenkehahn/stackage,iand675/stackage,simonmichael/stackage,michalkonecny/stackage,clinty/stackage,massysett/stackage,asr/stackage,jonschoning/stackage,Daniel-Diaz/stackage,fpco/stackage,athanclark/stackage