$ git clone -n https://src.fedoraproject.org/rpms/rust-fragile.git /var/lib/mock/f40-build-2660051-66918/root/chroot_tmpdir/scmroot/rust-fragile
Cloning into '/var/lib/mock/f40-build-2660051-66918/root/chroot_tmpdir/scmroot/rust-fragile'...
$ git fetch origin acb4b0a547b224bc702da2f859498798fb9e7060:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fragile
 * [new ref]         acb4b0a547b224bc702da2f859498798fb9e7060 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at acb4b0a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild