NS_ERROR_UNEXPECTED on Firefox when init again same id after Ajax reload

When init again Tinymce on same id after ajax reload Firefox has a problem at line 370 in dom/Serializer.js and throw an exception NS_ERROR_UNEXPECTED :

impl = node.ownerDocument.implementation;

I fixed it by adding a condition :

if (Env.webkit || Env.opera) { ... }

Is there another way to fix that for good ?

[spocke]

Can be avoided by using tinymce.remove(); see: http://fiddle.tinymce.com/spfaab

[metricjs]

Hi, we’ve investigated this issue and cannot reproduce it in TinyMCE v4.4.0. Thanks, the TinyMCE Team.