$ git clone -n https://src.fedoraproject.org/rpms/postgresql16.git /var/lib/mock/f42-build-side-1-3587789-46935/root/chroot_tmpdir/scmroot/postgresql16
Cloning into '/var/lib/mock/f42-build-side-1-3587789-46935/root/chroot_tmpdir/scmroot/postgresql16'...
$ git fetch origin f0f8c1b87904bd31ca837f4e00b6692082f3ed5f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql16
 * [new ref]         f0f8c1b87904bd31ca837f4e00b6692082f3ed5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0f8c1b Enable zstd support