$ git clone -n https://src.fedoraproject.org/rpms/kf5-purpose.git /var/lib/mock/f41-build-812065-147685/root/chroot_tmpdir/scmroot/kf5-purpose
Cloning into '/var/lib/mock/f41-build-812065-147685/root/chroot_tmpdir/scmroot/kf5-purpose'...
$ git fetch origin aedce354fe0d01e3e26b961d54eef32c362cec82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-purpose
 * [new ref]         aedce354fe0d01e3e26b961d54eef32c362cec82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aedce35 5.116.0