Angular2 set param of current route in routerLink
<p>Although it looks trivial, I didn't find any similar cases
Here's my route : </p>

<pre><code>{
    path: 'folder/:id',
    component: FolderComponent,
    children: [
        {
            path: 'edit/:form',
            component: 'EditorComponent'
        }
    ]
}
</code></pre>

<p>When I'm on <code>edit/form1</code> page, I can't find the way to specify my routerLink directive so that it just changes the <code>:form</code> value, without losing the parent <code>:id</code> value.
For now, I need to do that : </p>

<p><strong>1</strong> <code>&lt;a [routerLink]="['../../edit, 'form2']"&gt;Form2&lt;/a&gt;</code> to get two level up. <strong>This works</strong>. But it's not that elegant...</p>

<p><strong>2</strong> I tried <code>['edit', 'form2']</code>, it brings me to <code>folder/:id/edit/form1/folder/form2</code></p>

<p><strong>3</strong> If I do <code>['/edit', 'form2']</code>, I get <code>/folder/form2</code></p>

<p><strong>4</strong> I even tried <code>['', 'form2']</code>, I get <code>/form2</code></p>

<p><strong>edit :</strong></p>

<p><strong>5</strong> As suggested I tried <code>['./edit', 'form2']</code>, but it gives me <code>folder/:id/edit/form1/edit/form2</code></p>

<p>Just to precise, my link is in <code>editor-component.html</code> and the current url is <code>http://myapp.com/folder/:id/edit/form1</code></p>

<p>Thx for your help</p>