$ git clone -n https://src.fedoraproject.org/rpms/rust-matrixcompare.git /var/lib/mock/f40-build-2108860-50616/root/chroot_tmpdir/scmroot/rust-matrixcompare
Cloning into '/var/lib/mock/f40-build-2108860-50616/root/chroot_tmpdir/scmroot/rust-matrixcompare'...
$ git fetch origin 826f6dfaa6f33137170d53c55bd3e7791177957f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-matrixcompare
 * [new ref]         826f6dfaa6f33137170d53c55bd3e7791177957f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 826f6df Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild