$ git clone -n https://src.fedoraproject.org/rpms/opencv.git /var/lib/mock/f41-build-860074-168769/root/chroot_tmpdir/scmroot/opencv
Cloning into '/var/lib/mock/f41-build-860074-168769/root/chroot_tmpdir/scmroot/opencv'...
$ git fetch origin 9ef0ab81a907941206fb9381585334ce77f40ac9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/opencv
 * [new ref]         9ef0ab81a907941206fb9381585334ce77f40ac9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ef0ab8 Rebuild for tesseract-5.4.1-3 (soversion change from 5.4.1 to just 5.4)