More on local peer detection.
Split 'common/' into commit 'a0947a01f2c25d818f033277b4ec398607c3f2bd'

git-subtree-dir: common
git-subtree-mainline: d4f9df4473434d6a9b8fca76343f4f50a8b81cbb
git-subtree-split: a0947a01f2c25d818f033277b4ec398607c3f2bd