#2346 (Apr 27, 2021, 6:33:41 PM)

PR #1543: Linkedfn fixes

	Changes linked fns warn if not united, allow substitutions for linked vecfns (commit: 8122939) (details / githubweb) small fixes (commit: 353cb75) (details / githubweb) addd test (commit: 9bb3990) (details / githubweb) only add gradients if there's truthy tags (commit: 7f95279) (details / githubweb) clean up warnings (commit: cb07628) (details / githubweb)
	GitHub pull request #1543 of commit cb07628b49bb79b1c1f6f4a9917ed61ee3f56ed8, no merge conflicts.
	SCM: git https://github.com/convexengineering/gpkit Commits since last build: 200 Latest commit: af66585
	Test Result (no failures)