$ git clone -n https://src.fedoraproject.org/rpms/rust-derivative.git /var/lib/mock/f41-build-side-1-2907232-34727/root/chroot_tmpdir/scmroot/rust-derivative
Cloning into '/var/lib/mock/f41-build-side-1-2907232-34727/root/chroot_tmpdir/scmroot/rust-derivative'...
$ git fetch origin c632b987b2964486a7907cf20a8ae252ad958228:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-derivative
 * [new ref]         c632b987b2964486a7907cf20a8ae252ad958228 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c632b98 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild