$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_unexpand.git /var/lib/mock/f40-build-781180-131442/root/chroot_tmpdir/scmroot/rust-uu_unexpand
Cloning into '/var/lib/mock/f40-build-781180-131442/root/chroot_tmpdir/scmroot/rust-uu_unexpand'...
$ git fetch origin 2aa38ec1d89a07130ab42719b9f1c5cda6966529:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_unexpand
 * [new ref]         2aa38ec1d89a07130ab42719b9f1c5cda6966529 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2aa38ec Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild