$ git clone -n https://src.fedoraproject.org/rpms/postgresql15.git /var/lib/mock/f40-build-2311748-57528/root/chroot_tmpdir/scmroot/postgresql15
Cloning into '/var/lib/mock/f40-build-2311748-57528/root/chroot_tmpdir/scmroot/postgresql15'...
$ git fetch origin 088578fc395f816bf6891a5a478ac4e700e59f6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql15
 * [new ref]         088578fc395f816bf6891a5a478ac4e700e59f6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 088578f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild