$ git clone -n https://src.fedoraproject.org/rpms/kf6-kiconthemes.git /var/lib/mock/f41-build-side-1-3046878-37615/root/chroot_tmpdir/scmroot/kf6-kiconthemes
Cloning into '/var/lib/mock/f41-build-side-1-3046878-37615/root/chroot_tmpdir/scmroot/kf6-kiconthemes'...
$ git fetch origin be43c413df5f6dc626af485673292ef870cbe616:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kiconthemes
 * [new ref]         be43c413df5f6dc626af485673292ef870cbe616 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be43c41 Rebuild (qt6)