Translation reviews are attributed to the translator (not reviewer) on public profile pages

[qguv]

To reproduce:

1. Suggest a translation as user A
2. Accept that translation as user B
3. Visit User A's public profile

On user A's public profile, under "Latest activity", there will be an entry that says:

User A reviewed [truncated msgstr]... [relative time]

User B's public profile does not mention the msgid at all.

The message from user A's public profile should be on user B's public profile, and user A's public profile should say that they translated or suggested a translation for the msgid.

Environment (i.e. 'pootle --version', DB, OS, Browser):

$ pootle --version
Pootle 2.9.0rc1 (Django 1.10.8, Translate Toolkit 2.2.5)
$ uname -a
Linux pootle 4.19.0-5-amd64 #1 SMP Debian 4.19.37-5 (2019-06-19) x86_64 GNU/Linux

Possibly related to #2406, #4621, #6801.

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Pootle is great software; thanks a lot to everyone working on it.