Caret is stuck when inserting any form element.

[Sa'ar Zac Elias]

To reproduce

• Open the demo or a sample in the SVN.
• Insert any form element (e.g. input, select etc.).
• Move the caret to the sides of the element.

in IE, the caret won't move back to the right. in FF, it won't move to both sides.

[Jakub Ś]

Issue has been reproducible in Opera, IE8 and Firefox from CKE 3.0.

• Insert any form element behind sample text in E.g. replacebycode sample.

Result: You won't be able to move cursor to the right.

• Insert any form element into empty editor.

Result: In IE8 you won't ba able to move cursor to the right. In FF and Opera to the left.

NOTE:In FF, after inserting form element in empty editor, press left arrow and up arrow. Now you will be able to move to right and to left of form element using up and down arrow.

[Jakub Ś]

IE8 has also problem with images #8446 and non-editable elements #8492.
Perhaps patch from #8446 might be helpful.