$ git clone -n https://src.fedoraproject.org/rpms/rust-os_str_bytes.git /var/lib/mock/f40-build-2326289-58830/root/chroot_tmpdir/scmroot/rust-os_str_bytes
Cloning into '/var/lib/mock/f40-build-2326289-58830/root/chroot_tmpdir/scmroot/rust-os_str_bytes'...
$ git fetch origin 1fd75233a1aa185dd72f42d9d16c5fcf3014c078:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-os_str_bytes
 * [new ref]         1fd75233a1aa185dd72f42d9d16c5fcf3014c078 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fd7523 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild