Also convert collation to utf8mb4_unicode_ci
- Reason I put this under security is when I was looking into T145885 I came across a warning that using utf8 (not full Unicode could present security issues)
"The content got truncated at the first astral Unicode symbol, in this case 𝌆 — so, attempting to insert foo𝌆bar actually inserted foo instead, resulting in data loss (and possibly introducing security issues; see below). MySQL returned a warning message, too:"
using utf8 can trunicate results.
we should switch to utf8mb4
Anyways utf8mb4 is recommended for MySQL 5.5.3+ which I presume gerrit is running a more recent version.