It was posted by a gunsmith who found that a fairly common occurrence.
Aside from that, there are two popular gun forums dedicated to the 1911. Those issues (and others),I have mentioned are just some of the more frequent maladies inherent to the 1911 that they talk about in their respective gun-smithing areas. If you have not heard of those problems, you likely are not lurking in the right forums.
I've been shooting 1911's since the late 60's and I never heard of a single case of that happening. I also belong to two popular forums dedicated to the 1911 and cant remember anything like that. Care to post links?