$ git clone -n https://src.fedoraproject.org/rpms/perl-Paper-Specs.git /var/lib/mock/f40-build-2307248-57213/root/chroot_tmpdir/scmroot/perl-Paper-Specs
Cloning into '/var/lib/mock/f40-build-2307248-57213/root/chroot_tmpdir/scmroot/perl-Paper-Specs'...
$ git fetch origin a43e2d29b5b531a157d82f0c7a0fbf24c0ae9d95:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Paper-Specs
 * [new ref]         a43e2d29b5b531a157d82f0c7a0fbf24c0ae9d95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a43e2d2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild