It's okay Chris, sit yourself back down. I'll do your work for you.
The incident I believe you're referring to was Helen Joyce's friend who had chopped the chevrons out of the progress pride flag at a protest before Helen had even got to the protest.
It's detailed in Helen Joyce's blog here. So not exactly hidden. https://www.thehelenjoyce.com/joyce-activated-issue-21/
The relevant part:
Soon after arriving I met my friend Jo Campbell, a lesbian activist, who showed me a Progress Pride flag she had chopped up to remove the chevrons added to the original rainbow. [...]
This photo is being interpreted as two white supremacists defacing a flag (for crying out loud, white supremacists?? And Jo would argue that it is the intrusion of these ideological elements into a flag that already represents every same-sex-attracted person that is the defacement). Jo waving at a friend is supposedly a Nazi salute. I’ve even seen claims that we stole the flag from a protester (it’s Jo’s, she brought it with her, already in two pieces, and is planning to add Velcro to the two sides so she can in future make her point more theatrically).
The issue isn’t merely that these specific allegations are invented; it’s that the specifics aren’t the point. The people who hate me and want others to shun me are looking for any mud they can throw at someone they have already declared a target.
(my bolding at the end)