$ git clone -n https://src.fedoraproject.org/rpms/postgresql18-pg_repack.git /var/lib/mock/f45-build-28842-633/root/chroot_tmpdir/scmroot/postgresql18-pg_repack
Cloning into '/var/lib/mock/f45-build-28842-633/root/chroot_tmpdir/scmroot/postgresql18-pg_repack'...
$ git fetch origin 7a9388a06ac43b165769c87f06456e4f71419f28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql18-pg_repack
 * [new ref]         7a9388a06ac43b165769c87f06456e4f71419f28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a9388a Use CentOS Stream test repository instead of Fedora