Radamsa doesn't check for mutations that don't alter anything

What steps will reproduce the problem?
1. $ echo "a" | radamsa -n 1000 | sort | uniq -c | grep -a " a$" -> 774 a

What is the expected output? What do you see instead?
Not sure what is expected, because when for example specifying a specific 
mutation it shouldn't just break something randomly if it doesn't work, or it 
might break structure of an otherwise interesting document having a mutation 
elsewhere. Still, something ought to be done about this.

Please use labels and text to provide additional information.

Original issue reported on code.google.com by aohelin on 20 Sep 2011 at 10:31

shiryu92kmp / ouspg

Radamsa doesn't check for mutations that don't alter anything #59