$ git clone -n https://src.fedoraproject.org/rpms/rust-app_dirs.git /var/lib/mock/f40-build-2323895-58745/root/chroot_tmpdir/scmroot/rust-app_dirs
Cloning into '/var/lib/mock/f40-build-2323895-58745/root/chroot_tmpdir/scmroot/rust-app_dirs'...
$ git fetch origin a89b3a76c82d92a2efb916ad5dd3e92ebb814a33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-app_dirs
 * [new ref]         a89b3a76c82d92a2efb916ad5dd3e92ebb814a33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a89b3a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild