wikibugs just reported this in #wikimedia-dev:
[16:10] <wikibugs> (PS1) Siddparmar: Update numbers [wikimedia/TransparencyReport-private] - https://gerrit.wikimedia.org/r/406780 [16:14] <wikibugs> (CR) Siddparmar: [V: 2 C: 2] Update numbers [wikimedia/TransparencyReport-private] - https://gerrit.wikimedia.org/r/406780 (owner: Siddparmar)
I can't access https://gerrit.wikimedia.org/r/406780 and https://gerrit.wikimedia.org/r/#/q/project:wikimedia/TransparencyReport-private has no results, so this is probably supposed to really be private.
wikibugs should not be able to see these commit's messages, and must not report them on IRC.