$ git clone -n https://src.fedoraproject.org/rpms/perl-DBD-Pg.git /var/lib/mock/f39-build-1438467-32210/root/chroot_tmpdir/scmroot/perl-DBD-Pg
Cloning into '/var/lib/mock/f39-build-1438467-32210/root/chroot_tmpdir/scmroot/perl-DBD-Pg'...
$ git fetch origin be49be64a3564ea779fbf501266dc7ca874056c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBD-Pg
 * [new ref]         be49be64a3564ea779fbf501266dc7ca874056c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be49be6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild