$ git clone -n https://src.fedoraproject.org/rpms/flann.git /var/lib/mock/f40-build-796958-140988/root/chroot_tmpdir/scmroot/flann
Cloning into '/var/lib/mock/f40-build-796958-140988/root/chroot_tmpdir/scmroot/flann'...
$ git fetch origin 2ddd0f6b5fe4750da1526de8955df99554dac5d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flann
 * [new ref]         2ddd0f6b5fe4750da1526de8955df99554dac5d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ddd0f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild