$ git clone -n https://src.fedoraproject.org/rpms/postgresql16.git /var/lib/mock/f40-build-780138-130690/root/chroot_tmpdir/scmroot/postgresql16
Cloning into '/var/lib/mock/f40-build-780138-130690/root/chroot_tmpdir/scmroot/postgresql16'...
$ git fetch origin 9b9a8eb409c56b9e497f61e21cf1bc4bdd44cc13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql16
 * [new ref]         9b9a8eb409c56b9e497f61e21cf1bc4bdd44cc13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b9a8eb Backport OpenSSL 3.2 fix from upstream master