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''Note that another of our rules was broken during this ringing, since each change was repeated one hundred times.''
This doesn't actually break any of the rules of change ringing. When ringing on 6 bells or fewer, changes obviously have to be repeated to get to 5040 changes, so the rule is that no change must be repeated more than any other. The maximum number of times any one change can be repeated is the length of the peal divided by the number of changes in the extent on the number of bells you are ringing. So on 5 bells, you are allowed to ring a 5040 change peal by ringing every change exactly 42 times each, but if some changes were rung 43 times and others on 41, the peal would be disallowed.