When changing the status of a posted transaction to do not post, you might notice that the reversal is not added to the GL Distribution tab of the revenue record.
We are currently evaluating this issue for a fix in a future service pack.
Steps to Duplicate
1) Add a revenue transaction with the status of Not posted. 2) Post the transaction to the GL. 3) Edit the posted transaction > change the post status to Do not post. 4) Notice that the GL Distribution contains only the original two entries so that the revenue appears to still be posted.