$ git clone -n https://src.fedoraproject.org/rpms/kf6-kiconthemes.git /var/lib/mock/f41-build-838217-159635/root/chroot_tmpdir/scmroot/kf6-kiconthemes
Cloning into '/var/lib/mock/f41-build-838217-159635/root/chroot_tmpdir/scmroot/kf6-kiconthemes'...
$ git fetch origin 56f30bb42492139db483fe3784c21a5f39d597ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kiconthemes
 * [new ref]         56f30bb42492139db483fe3784c21a5f39d597ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56f30bb 6.5.0