I stumbled upon this suggested edit. It adds the following text to the end of an answer:
I now have a solution on how to fix the mirror catch (only confirmed for specifically the Helios 44-2 58mm f/2 on Canon full frame bodies):
I guess this should be rejected, because it doesn't add any information. Only a link. I skipped because I wasn't sure about the whole thing of an anonymous user personating a registered one. The registered user is Jakub, which makes it unlikely that this is a hoax of a spambot. I guess the issue is due to him not being logged in properly.
Any thoughts on how to deal with this kind of situation?