$ git clone -n https://src.fedoraproject.org/rpms/postgresql-jdbc.git /var/lib/mock/f39-build-1740888-41365/root/chroot_tmpdir/scmroot/postgresql-jdbc
Cloning into '/var/lib/mock/f39-build-1740888-41365/root/chroot_tmpdir/scmroot/postgresql-jdbc'...
$ git fetch origin 19e64d05961960653514581033b4183420f96d0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql-jdbc
 * [new ref]         19e64d05961960653514581033b4183420f96d0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19e64d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild