The fix is at https://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?id=dd4d8b24da29abfc786ce0b3030c74559b93d034. NetworkManager 1.2.0 in xenial-proposed still has this issue.
The fix is at https:/ /cgit.freedeskt op.org/ NetworkManager/ NetworkManager/ commit/ ?id=dd4d8b24da2 9abfc786ce0b303 0c74559b93d034.
NetworkManager 1.2.0 in xenial-proposed still has this issue.