Bug: a single chip defaults to having a margin-left

[willshowell]

Bug, feature request, or proposal:

Bug

What is the expected behavior?

Single chips have no margin

What is the current behavior?

in dir=LTR

If there are two chips, the first has no left margin, and the second has no right margin.
However, a single chip has a left margin of 3px and no right margin.

What are the steps to reproduce?

http://plnkr.co/edit/1LocpntStWpV0BBI5OLj?p=preview

Motivation

When you are adding chips over time, the whole list jumps left 3px when chip count grows from 1 to 2.

Other

Due to the fallback for :last-child

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}