$ git clone -n http://fedora.riscv.rocks:3000/rpms/opencv.git /var/lib/mock/f41-build-812251-147743/root/chroot_tmpdir/scmroot/opencv
Cloning into '/var/lib/mock/f41-build-812251-147743/root/chroot_tmpdir/scmroot/opencv'...
$ git fetch origin f4395b2bc766cb1dfbb6acd9f41d58f0bf1dae4b:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/opencv
 * [new ref]         f4395b2bc766cb1dfbb6acd9f41d58f0bf1dae4b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4395b2 Merge remote-tracking branch 'up/main' into main-riscv64