$ git clone -n https://src.fedoraproject.org/rpms/aunit.git /var/lib/mock/f38-build-side-42-init-devel-1110714-30078/root/chroot_tmpdir/scmroot/aunit
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1110714-30078/root/chroot_tmpdir/scmroot/aunit'...
$ git fetch origin 88b7964804834feaa1ad056fbf4a965c4988c7a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/aunit
 * [new ref]         88b7964804834feaa1ad056fbf4a965c4988c7a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88b7964 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild