$ git clone -n https://src.fedoraproject.org/rpms/kf6-kiconthemes.git /var/lib/mock/f40-build-1493389-23853/root/chroot_tmpdir/scmroot/kf6-kiconthemes
Cloning into '/var/lib/mock/f40-build-1493389-23853/root/chroot_tmpdir/scmroot/kf6-kiconthemes'...
$ git fetch origin e5a98a3631db6c374aaedb6aecd5aa74d0823ba5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kiconthemes
 * [new ref]         e5a98a3631db6c374aaedb6aecd5aa74d0823ba5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5a98a3 Merge branch 'rawhide' into f40