$ git clone -n https://src.fedoraproject.org/rpms/perl-Digest-MD5.git /var/lib/mock/f40-build-779425-130340/root/chroot_tmpdir/scmroot/perl-Digest-MD5
Cloning into '/var/lib/mock/f40-build-779425-130340/root/chroot_tmpdir/scmroot/perl-Digest-MD5'...
$ git fetch origin b1fe0f743172442d0acd5b912bebebcdf1771310:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Digest-MD5
 * [new ref]         b1fe0f743172442d0acd5b912bebebcdf1771310 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1fe0f7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild