$ git clone -n https://src.fedoraproject.org/rpms/libcaca.git /var/lib/mock/f40-build-2293624-56209/root/chroot_tmpdir/scmroot/libcaca
Cloning into '/var/lib/mock/f40-build-2293624-56209/root/chroot_tmpdir/scmroot/libcaca'...
$ git fetch origin f2b09efa5980c39504643019ec9a7c3c6bd3f1c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcaca
 * [new ref]         f2b09efa5980c39504643019ec9a7c3c6bd3f1c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2b09ef Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild