Who fixed the bells, and when?

For what seems like years now, the sanctus bells have never rung quite right. One of the clappers sticks, requiring an extra-heavy twist so that the whole just sounded a bit noisier than I liked. I always had it in mind to take a look at the problem but by the end of the service the issue would be forgotten.

So it was with quite some surprise Sunday that I noted the bells rang like they should, much more musically than I'd recalled. I finally looked at them after the service and found that one clapper stem had been replaced with a piece of wire, twisted around.

I remember mentioning the trouble with the bells to Fr. Daniel a few days earlier, but he says he didn't fix them.

So now the puzzle: did somebody just fix them, or were they "fixed" a long time ago and was the wire clapper-stem replacement part of the trouble?