Follow-up of !6977
### Manual testing
- User **S** creates an organization **O** and posts a comment **C** (on a random issue);
- User **R** report as abuse the comment **C**, the organization **O** as well as the user **S**;
- User **S** changes the content of comment **C** and the description of organization **O** as well as the description of their own profile;
- Check (within DB) that shadow copies are being created (and linked to corresponding abuse reports) for comment **C**, organization **O** and user **S** and the content is the one from the moment when the reports were submitted (therefore before the updates made by **S**).
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8533
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: floss4good <floss4good@disroot.org>
Co-committed-by: floss4good <floss4good@disroot.org>