Sending an unverified bid to a competitor, and owning the mistake instead of hiding it

I sent a Kanopi built residential addition bid to a competing general contractor referral partner as a comparison exercise before I'd personally reviewed it for errors, and the competitor's bid came back both lower and clearly derived from the numbers my own team had sent. The comparison surfaced a real tax jurisdiction error in my own bid, along with clear evidence the competitor had derived their numbers from mine instead of building independently. I corrected my own error publicly in the rate library and diffed the competitor's bid honestly against mine, instead of quietly reissuing a clean version. I hadn't planted errors on purpose, I had simply sent a bid before verifying it. The honest response to being caught in your own mistake is to name it plainly, not to pretend the corrected version was the version you meant to send all along. I confirmed the tax jurisdiction was wrong, the property sits outside any incorporated city, so a lower county rate applied, not the higher city rate assumed, corrected the rate library so every future residential bid checks the county assessor's jurisdiction field first, and documented that the competitor's numbers were largely derived multipliers off mine, not an independent estimate. If you get caught in your own mistake, the fastest way to keep people's trust is to say exactly what happened, not to quietly clean it up and hope nobody noticed. I told the plain truth about it, I didn't leave any errors in there on purpose, I just didn't verify before I sent it out, instead of letting a more flattering story stand.