$ git clone -n https://src.fedoraproject.org/rpms/postgresql15.git /var/lib/mock/f40-build-2224339-52780/root/chroot_tmpdir/scmroot/postgresql15
Cloning into '/var/lib/mock/f40-build-2224339-52780/root/chroot_tmpdir/scmroot/postgresql15'...
$ git fetch origin acf2e909606fb16a00ce2854feb4c3fcd78c9f1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql15
 * [new ref]         acf2e909606fb16a00ce2854feb4c3fcd78c9f1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at acf2e90 Initial import of demodularized postgresql