$ git clone -n https://src.fedoraproject.org/rpms/kf6-kimageformats.git /var/lib/mock/f41-build-856170-167474/root/chroot_tmpdir/scmroot/kf6-kimageformats
Cloning into '/var/lib/mock/f41-build-856170-167474/root/chroot_tmpdir/scmroot/kf6-kimageformats'...
$ git fetch origin a740e12eea9a285985ac15edc82dc957388bd955:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kimageformats
 * [new ref]         a740e12eea9a285985ac15edc82dc957388bd955 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a740e12 6.7.0