[bug] Marked up code is not read only

[Guest]

In firefox, I click on the marked up code block, in any existing post or wiki article and can start typing in. I am allowed to add whatever I want, of course when the focus is lost, the code reverts back to the original saved version. But this should not be allowed

[mgran]

It's a "feature" of the code highlighter, a bit odd yes, but we will not make changes to it.