Using materialTooltip on <td />

[alescdb]

Dart VM version: 2.0.0-dev.51.0 (Mon Apr 30 09:50:35 2018 +0200) on "windows_x64"
angular: ^5.0.0-alpha+11
angular_components: ^0.9.0-alpha+11

Using materialTooltip in a table td adds a new empty column on the row when tooltip is displayed.

<td materialTooltip="{{h.feed}}">{{h.feed}}</td>

(using a span inside the td is working)