The only way to restore the data is to restore the exact original name of the field with spacing/capitalization which if you do not know beforehand can be anxiety inducing. I only found that information out after finding previous suggestions, and it is listed at the very bottom in bold on the custom ticket field article. I got lucky that support was able to find the original field name for me which allowed me to recover but you should not rely on luck and there are a lot of ways that could have been a big big problem. Better to prevent or warn on changes in the first place. Thanks Shopr team, you guys rock, have a happy thanksgiving!