"Canceled" Contribution via writeoff?

Hello all - 

A gift processing error from a few years ago occurred where an active pledge needed to be adjusted but instead the amount being adjusted was written off.  I beleive this sets the "cancel" field in T_CONTRIBUTION to "Y" meaning that because there has been a write-off, this gift is no longer valid to be adjusted.

This was a mistake and now the pledge needs to be adjusted - does it "break" anything internally if i just updated that row of data to set the "cancel" indicator to 'N'?

Thanks in advance!