$ git clone -n https://src.fedoraproject.org/rpms/rust-dirs-sys-next.git /var/lib/mock/f40-build-2655367-66911/root/chroot_tmpdir/scmroot/rust-dirs-sys-next
Cloning into '/var/lib/mock/f40-build-2655367-66911/root/chroot_tmpdir/scmroot/rust-dirs-sys-next'...
$ git fetch origin 8669fbc925968cf9525b805dabc518cf0554f2bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-dirs-sys-next
 * [new ref]         8669fbc925968cf9525b805dabc518cf0554f2bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8669fbc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild