sql change control issue

The drop constraint is outside the if but the add is inside. This is a mistake. Please offer some guidance

-- <Migration ID="0d0c3512-b3c0-46dc-b40d-25f450a2aaa3" />
GO

SET IMPLICIT_TRANSACTIONS, NUMERIC_ROUNDABORT OFF;
SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, NOCOUNT, QUOTED_IDENTIFIER ON;

SET DATEFORMAT YMD;

GO
PRINT (N'Drop constraint FK_TxMasterLoanOrNote_StpApplicationSnapshot from [dbo].[TxMasterLoanOrNote]');

ALTER TABLE [dbo].[TxMasterLoanOrNote] DROP CONSTRAINT [FK_TxMasterLoanOrNote_StpApplicationSnapshot];

GO
IF (SELECT COUNT(*)
    FROM   [dbo].[StpApplicationSnapshot]) = 0
    BEGIN
        PRINT (N'Add 2 rows to [dbo].[StpApplicationSnapshot]');
        INSERT  INTO [dbo].[StpApplicationSnapshot] ([ApplicationSnapshotID], [ApplicationSnapshotDesc])
        VALUES                                     (1, 'Origination');
        INSERT  INTO [dbo].[StpApplicationSnapshot] ([ApplicationSnapshotID], [ApplicationSnapshotDesc])
        VALUES                                     (2, 'ODS');
        ALTER TABLE [dbo].[TxMasterLoanOrNote]
            ADD CONSTRAINT [FK_TxMasterLoanOrNote_StpApplicationSnapshot] FOREIGN KEY ([ApplicationSnapshotID]) REFERENCES [dbo].[StpApplicationSnapshot] ([ApplicationSnapshotID]);
    END

GO