Tests whether home moves the caret to the beginning of line inside a content-editable in an uneditable table.

Dump of markup 1:
| "\n      "
| <div>
|   id="l1"
|   "The caret is initially <#selection-caret>here but should move to the beginning of the line."
| "\n      "
| <div>
|   "dummy text"
| "\n    "

Dump of markup 2:
| "\n      "
| <div>
|   id="l1"
|   "<#selection-caret>The caret is initially here but should move to the beginning of the line."
| "\n      "
| <div>
|   "dummy text"
| "\n    "