$ git clone -n https://src.fedoraproject.org/rpms/godot3.git /var/lib/mock/f40-build-2613981-64105/root/chroot_tmpdir/scmroot/godot3
Cloning into '/var/lib/mock/f40-build-2613981-64105/root/chroot_tmpdir/scmroot/godot3'...
$ git fetch origin 9d2786adb6fb33d113daba7fdce551183331312c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/godot3
 * [new ref]         9d2786adb6fb33d113daba7fdce551183331312c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d2786a Add riscv64 support