$ git clone -n https://src.fedoraproject.org/rpms/btrfs-heatmap.git /var/lib/mock/f40-build-2274842-55035/root/chroot_tmpdir/scmroot/btrfs-heatmap
Cloning into '/var/lib/mock/f40-build-2274842-55035/root/chroot_tmpdir/scmroot/btrfs-heatmap'...
$ git fetch origin 4b06d47f7d7dee9383d32e90dc63ad21c3785e14:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/btrfs-heatmap
 * [new ref]         4b06d47f7d7dee9383d32e90dc63ad21c3785e14 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b06d47 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild