$ git clone -n https://src.fedoraproject.org/rpms/libIDL.git /var/lib/mock/f40-build-785565-134021/root/chroot_tmpdir/scmroot/libIDL
Cloning into '/var/lib/mock/f40-build-785565-134021/root/chroot_tmpdir/scmroot/libIDL'...
$ git fetch origin cf6797e34872729b54c9b6a3ca0f2f1e1fe4e4e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libIDL
 * [new ref]         cf6797e34872729b54c9b6a3ca0f2f1e1fe4e4e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf6797e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild