$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-testthat.git /var/lib/mock/f41-build-839868-160406/root/chroot_tmpdir/scmroot/R-testthat
Cloning into '/var/lib/mock/f41-build-839868-160406/root/chroot_tmpdir/scmroot/R-testthat'...
$ git fetch origin 0db9049706730afd5d763fc28fbd59d4e93bb394:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-testthat
 * [new ref]         0db9049706730afd5d763fc28fbd59d4e93bb394 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0db9049 flip check bcond