$ git clone -n https://src.fedoraproject.org/rpms/rust-const-cstr.git /var/lib/mock/f40-build-2655124-66910/root/chroot_tmpdir/scmroot/rust-const-cstr
Cloning into '/var/lib/mock/f40-build-2655124-66910/root/chroot_tmpdir/scmroot/rust-const-cstr'...
$ git fetch origin 5358d5ef96eef95f59dd060710a68524d4f03f93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-const-cstr
 * [new ref]         5358d5ef96eef95f59dd060710a68524d4f03f93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5358d5e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild