$ git clone -n https://src.fedoraproject.org/rpms/rust-sharded-slab.git /var/lib/mock/f40-build-2327471-58853/root/chroot_tmpdir/scmroot/rust-sharded-slab
Cloning into '/var/lib/mock/f40-build-2327471-58853/root/chroot_tmpdir/scmroot/rust-sharded-slab'...
$ git fetch origin f49e867ba15d078235437c75b49d9b4c491e27dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sharded-slab
 * [new ref]         f49e867ba15d078235437c75b49d9b4c491e27dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f49e867 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild