$ git clone -n https://src.fedoraproject.org/rpms/perl-Digest-JHash.git /var/lib/mock/f40-build-778264-129834/root/chroot_tmpdir/scmroot/perl-Digest-JHash
Cloning into '/var/lib/mock/f40-build-778264-129834/root/chroot_tmpdir/scmroot/perl-Digest-JHash'...
$ git fetch origin 3c3e96c5fb09b20362954413bba7561bb4ff6ed9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Digest-JHash
 * [new ref]         3c3e96c5fb09b20362954413bba7561bb4ff6ed9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c3e96c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild