$ git clone -n https://src.fedoraproject.org/rpms/kjots.git /var/lib/mock/f38-build-side-42-init-devel-790466-27993/root/chroot_tmpdir/scmroot/kjots
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-790466-27993/root/chroot_tmpdir/scmroot/kjots'...
$ git fetch origin 99d92b10d97c2c73c927e11a68498a49d434ade9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kjots
 * [new ref]         99d92b10d97c2c73c927e11a68498a49d434ade9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99d92b1 Fix build with latest Akonadi/KPIM versions