I have noticed that TinyMCE is stripping out form elements from the source code. I have checked to see if this is done within TinyMCE and have tried the fixes I came across. (setting verify HTML to false, and adding to valid_elements) but neither of these seemed to work.
Is there something SilverStripe specific that is causing form elements to be stripped out of the HTMLEditField that I am not aware of?
Yes TinyMCE is excrutiatingly annoying to muck around with. The reason why I need forms within TinyMCE is that I need a small form running inline with a bunch of content. The form doesn't actually need to do anything (ie. doesn't submit, long story) but TinyMCE strips out all tags relating to forms, including <input>'s