$ git clone -n http://fedora.riscv.rocks:3000/rpms/shim.git /var/lib/mock/f40-staging-825976-154071/root/chroot_tmpdir/scmroot/shim
Cloning into '/var/lib/mock/f40-staging-825976-154071/root/chroot_tmpdir/scmroot/shim'...
$ git fetch origin 9099ddd561655208cef0fbcbd38cffbd93206ece:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/shim
 * [new ref]         9099ddd561655208cef0fbcbd38cffbd93206ece -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9099ddd Update to build for riscv64