Test that it works now, and that I didn't do anything stupid in the previous revision.
1. Start a multiplayer match without any patches and task some units
2. Replay that file in non-visual replay mode (pyrogenesis -replay=...commands.txt -mod=public)
3. If there are some hash mismatches, you reproduced the bug. Otherwise go back to step 1.
4. Apply the patch, do the nonvisual replay of the same commands.txt again and check if it the hash mismatch is gone.