Tax recalculated when pay later contribution is completed using Pay Now

To replicate:
1. Add contribution with tax i.e 100 + 10 (tax) = $110 with status as Pending(pay later)
2. On user dashboard click on Pay Now and complete the transaction

Expected result:
Contribution status should change to Completed and Amount = 110 and correct entries in financial table as per Data workflow.

Actual result:
The confirm and thank you page shows correct amount i.e $110 but contribution total amount is updated to $121.00(i.e tax is recalculated for $110 + 11 = $121) and also there is unbalance transaction recorded in financial table.