$ git clone -n https://src.fedoraproject.org/rpms/rust-derive_builder_core0.9.git /var/lib/mock/f40-build-2680329-67942/root/chroot_tmpdir/scmroot/rust-derive_builder_core0.9
Cloning into '/var/lib/mock/f40-build-2680329-67942/root/chroot_tmpdir/scmroot/rust-derive_builder_core0.9'...
$ git fetch origin 65836aca4da1138468f210e6af4a83012578ca23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-derive_builder_core0.9
 * [new ref]         65836aca4da1138468f210e6af4a83012578ca23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65836ac Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild