== Test plan ==
1. Search any syspref that has a text input
2. input a value, like 3, you see "modified" 
3. save
4. refresh (tech note: the <input> will now have value=3)
5. input 5, you see "modified" 
6. save (tech note: the <input> still has value=3, this is the cause)
7. input 3, you don't see "modified" (this in wrong)
8. save
9 "nothing to save", this is wrong