$ git clone -n https://src.fedoraproject.org/rpms/perl-AppConfig-Std.git /var/lib/mock/f40-build-2015013-46032/root/chroot_tmpdir/scmroot/perl-AppConfig-Std
Cloning into '/var/lib/mock/f40-build-2015013-46032/root/chroot_tmpdir/scmroot/perl-AppConfig-Std'...
$ git fetch origin 234b3bdd1c5ca0a5b34c64d556844b35fa53b498:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-AppConfig-Std
 * [new ref]         234b3bdd1c5ca0a5b34c64d556844b35fa53b498 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 234b3bd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild