FWIW When what was a properly adjusted extractor starts to do that, re-bending the extractor will really only work for a short while...it'll go bad, again, and it'll start to happen more frequently. If it happens again in the next few months, consider it time to buy a new one from your preferred vendor of choice and fit it.
I personally go for a C&S spring steel one, but EGW's extractors are pretty top notch and don't suffer from needing a ton of work to fit it and make it "perfect" like the C&Ss do from what I hear...I may buy my next one(s) from them and go that route.
There's a great sticky on
1911forum from Steve in Allentown who goes super nerd on 1911 extractor tension, deflection, and everything else 1911 extractor related. It's a bit overwhelming but at the very least it gives you the bulletpoints on fitting an extractor to your gun in about a permanent manner is as possible for a mechanical instrument..