$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-magick.git /var/lib/mock/f41-build-821002-152416/root/chroot_tmpdir/scmroot/R-magick
Cloning into '/var/lib/mock/f41-build-821002-152416/root/chroot_tmpdir/scmroot/R-magick'...
$ git fetch origin 353deda4d982601384d9f5cd37548e175d0f3de0:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-magick
 * [new ref]         353deda4d982601384d9f5cd37548e175d0f3de0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 353deda Bootstrap (riscv64)