Merge branch 'ds/commit-graph-on-fetch'

Regression fix. * ds/commit-graph-on-fetch: commit-graph: fix writing first commit-graph during fetch t5510-fetch.sh: demonstrate fetch.writeCommitGraph bug

Junio C Hamano committed Nov 4, 2019 at 13:33 UTC dac1d83c919430aa73f8df21854a08a7b9a95837

No changes.