When submitting a score using the "Prepopulate fields by previous submission", all of the imported information is not immediately configurable. To change the memory frequencies, cooling, IC type, CB/CBB, etc. you muse re-select the Memory Type. Otherwise these options are not available.
Before clicking on Memory Type:
After clicking on Memory Type:
I only submit this as a bug because I couldn't figure out how to change the memory frequency recently and resorted to re-typing everything each time.