$ git clone -n https://github.com/fedora-riscv/java-17-openjdk /var/lib/mock/f39-build-1835643-41919/root/chroot_tmpdir/scmroot/java-17-openjdk
Cloning into '/var/lib/mock/f39-build-1835643-41919/root/chroot_tmpdir/scmroot/java-17-openjdk'...
$ git fetch origin 6cd95d2f2b32f85c046bbfb7942caecc40d6f0a2:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/java-17-openjdk
 * [new ref]         6cd95d2f2b32f85c046bbfb7942caecc40d6f0a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cd95d2 Add riscv64 support