Inconsistent behavior of insertHtml in IE and FF

[Wiktor Walc]

When starting with the following html and selection (in wysiwyg mode):

<p><span style="color: #f00">text</span>^</p>

executing insertHtml (use _samples/api.html to check it) in IE8 results in:

<p><span style="color: #f00">textNEW_INSERTION</span></p>

in FF 3.6.3 the result is different:

<p><span style="color: #f00">text</span>NEW_INSERTION</p>

[Wiktor Walc]

Might be solved by #5309

[Piotrek Koszuliński]

Fixed in 4.2. What may be still inconsistent is where the selection is placed - inside or outside inline element, but this is a different issue to always keep it in the same place.