Repro steps:
sfdx force:org:create -f config/project-scratch-def.json -a scpicklist -s
sfdx force:source:push
repro issue with sc picklists and sfdx
Repro steps:
sfdx force:org:create -f config/project-scratch-def.json -a scpicklist -s
sfdx force:source:push
repro issue with sc picklists and sfdx