$ git clone -n https://src.fedoraproject.org/rpms/R-tesseract.git /var/lib/mock/f41-build-side-1-2810935-32924/root/chroot_tmpdir/scmroot/R-tesseract
Cloning into '/var/lib/mock/f41-build-side-1-2810935-32924/root/chroot_tmpdir/scmroot/R-tesseract'...
$ git fetch origin 2d771ca2357e24e5dbd776f25ba98d9081ae5c97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-tesseract
 * [new ref]         2d771ca2357e24e5dbd776f25ba98d9081ae5c97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2d771ca Rebuild for tesseract-5.4.1-3 (soversion change from 5.4.1 to just 5.4)