m
match <code>&lt;tree-ish&gt;</code> exactly.</p>
</dd>
<dt class="hdlist1">&lt;branch&gt;</dt>
<dd>
<p>Branch to checkout; if it refers to a branch (i.e., a name that,
when prepended with "refs/heads/", is a valid ref), then that
branch is checked out. Otherwise, if it refers to a valid
commit, your <code>HEAD</code> becomes "detached" and you are no longer on
any branch (see below for details).</p>
<div class="paragraph">
<p>You can use the <code>@{-N}</code> syntax to refer to the N-th last
branch/commi