[TYPO3-RTE] RTE removes span-tags after saving

[Victor Livakovsky]

> F.e. such configuration:

> RTE.default.contentCSS = fileadmin/template/css/style-rte.css

> RTE.default {
>        classesCharacter = red
>        showTagFreeClasses = 1
> }

> will add "red" to "Text style" drop-down and it will be successfully
> applied to every text segment. But after saving it will be removed
> from text.

Also I should say, that span-tag isn't removed from f.e. h1-tags. Only
from p-tags.